Which of the following does a rock or sediment layer have to have in order to be a good aquifer (i.e., a layer that water can flow through)?
Both high porosity and high permeability
Neither high porosity nor high permeability
High permeability
High porosity

Answers

Answer 1

A rock or sediment layer needs to have both high porosity and high permeability in order to be a good aquifer, i.e., a layer that water can flow through.

Porosity refers to the amount of open space, or pores, in a rock or sediment, while permeability refers to the ease with which fluids can flow through those pores.

High porosity is necessary for an aquifer because it provides the space for water to be stored within the rock or sediment layer. The more open space there is, the more water the layer can hold.

However, if the pores are not connected, or if they are too small, water may not be able to flow through the layer and the porosity alone will not make it a good aquifer.

On the other hand, high permeability is necessary for water to flow through the layer and be extracted.

Even if a layer has high porosity, if the pores are not connected or are too small, water may not be able to flow through the layer and into wells or other extraction points. Therefore, high permeability is also necessary for a layer to be a good aquifer.

In summary, both high porosity and high permeability are required for a rock or sediment layer to be a good aquifer. High porosity provides the space for water storage, while high permeability allows water to flow through the layer and be extracted.

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Related Questions

The Sun's chromosphere contains many jet-like projections that stick up into the transition region. These spikes of gas are called: coronae spicules plages flares prominences

Answers

Answer:

Yes

Explanation:

The Sun's chromosphere contains many jet-like projections that stick up into the transition region. These spikes of gas are called spicules. Therefore option B is correct.

What is Chromosphere?

The word chromosphere is derived from the greek word chroma which means color. So the chromosphere is the outer layer of the sun.

Generally, the chromosphere is the outer space of all the stars, although the sun is also a big star so that is why we called it the sun's chromosphere. Plasma is a gas that is electrically charged, in the chromosphere plasma has low density. The chromosphere is the outer layer of the sun but the temperature of the chromosphere is about 6000*C which is very high.

Hence the chromosphere contains many Jet like projections that stick up into the transition region.

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What are some problems associated with urbanization?

Answers

urbanization can lead to congestion, higher crime rates, pollution, increased levels of inequality and social exclusion.

How would you classify the listed galaxies using the system of Hubble's galaxy classes? Drag the items on the left to the appropriate blanks on the right. Reset Help NGC 1300 GC 4414 is a tilted ditik galaxy with a flocculent discontinuous spiralarms. It does not have a bar, and its bulge is not very large It should be Scor Sb galaxy M101 NG 4594 is an edge-on spiral with a large bulge.

Answers

In his classification of galaxies, Edwin Hubble divided them into four categories: spirals, barred spirals, ellipticals, and irregulars. He further separated spiral and barred spiral galaxies based on the size of the central bulge and the makeup of the arms.

What are the three categories of galaxies?

Based on the shape of galaxies as seen from Earth, Edwin Hubble suggested a classification system for them in 1926. Regular galaxies fall into one of three basic categories according to the Hubble sequence: spiral, lenticular, or elliptical.

Which category of the Hubble classification system contains the largest galaxies?

Galaxies can be categorized based on how they appear using the Hubble classification system. The biggest, smallest, and most prevalent galaxies fall within the elliptical category.

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The theory of plate tectonics proposes that the earth’s rocky exterior is broken up into several pieces, or plates, that move with respect to one another. What is the rigid outer layer of the earth called?.

Answers

Answer:

it's called the lithosphere, it's the crust of the earth; the rocky outer layer of the earth.

Answer:

it's called the lithosphere, it's the crust of the earth; the rocky outer layer of the earth.

Explanation:

6. The difference between two negative numbers is always negative.

Answers

The answer is false! Explanation: -1 minus -3 equals 2.

Beneath the continents, seismic velocities in the mantle increase with depth because the mantle becomes Choose one: A. less compressible. B. less rigid. C. hotter. D. less dense.

Answers

Beneath the continents, seismic velocities in the mantle increase with depth because the mantle becomes (Option A) less compressible.



Beneath the continents, seismic velocities in the mantle increase with depth because the mantle becomes less compressible.

The mantle, which is a layer of Earth's interior located between the crust and the outer core, is primarily composed of solid rock that behaves like a viscous fluid on geological time scales.

As depth increases, pressure also increases, causing the mantle materials to become less compressible. This means that the mantle's ability to reduce in volume under pressure decreases as you go deeper.

As the mantle becomes less compressible, seismic waves, such as P-waves and S-waves, travel more quickly through the material.

This is because the increased resistance to compression allows the seismic waves to transmit energy more efficiently. In turn, this causes the observed increase in seismic velocities with depth.

While temperature, rigidity, and density can also play a role in influencing seismic velocities, they are not the primary reason for the increase in seismic velocities with depth beneath the continents.

The key factor is the mantle's decreasing compressibility as you go deeper, which directly affects the speed at which seismic waves travel through the mantle material.

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How many states are within Germany’s borders

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Germany shares borders with nine European countries, second only to Russia: Denmark in the north, Poland and the Czech Republic in the east, Switzerland (its only non-EU neighbor) and Austria in the south, France in the southwest and Belgium, Luxembourg and the Netherlands in the west.
Borders: 3,714 km (2,307 mi); Border lengths included: Denmark (140 km) (86mi); P...
Continent: Europe
Region: Central Europe
Area: Ranked 62nd

Germany consists of 16 states, known as Bundesländer, which have their own governments and varying degrees of autonomy. These states are part of the federal system of Germany, with each state having its own capital, administration, and unique cultural characteristics.

Bundesländer is a German term that translates to "federal states" or "states" in English. In the context of Germany, it refers to the 16 individual administrative divisions within the country.

The Bundesländer have their own governments, parliaments, and executive powers, which allow them to make decisions and implement policies in various areas such as education, culture, and local administration.

Each Bundesland has its own unique identity, history, and regional characteristics, contributing to the cultural and political diversity within Germany's federal system.

This decentralized structure empowers the states while maintaining a cohesive national framework.

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question what is the beginning of a river called? mouth mouth source source tributary tributary estuary

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The beginning of a river is called a source.

Rivers provide water for irrigation, domestic supply, strength era, and enterprise as well as a number of other surroundings services and intrinsic and biodiversity values. managing rivers to provide more than one blessing is consequently foundational to water protection and other policy priorities.

Rivers aren't best the source of water for human intake however in addition they maintain agriculture and gain us in different ways. once the water in rivers gets polluted, there are several harmful implications for us human beings. therefore, we ought to constantly try to maintain our rivers smooth and unfastened from pollution.

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Write a reasonable generalization comparing the elevation of the eastern and western halves of North America.

Answers

Answer:

North America, the third-largest continent, extends from the tiny Aleutian Islands in the northwest to the Isthmus of Panama in the south. The continent includes the enormous island of Greenland in the northeast and the small island countries and territories that dot the Caribbean Sea and western North Atlantic Ocean. In the far north, the continent stretches halfway around the world, from Greenland to the Aleutians. But at Panama’s narrowest part, the continent is just 50 kilometers (31 miles) across.

Explanation:

Explain the Law of Sines and Cosines.

Answers

Answer:

The sine rule is used when we are given either a) two angles and one side, or b) two sides and a non-included angle. The cosine rule is used when we are given either a) three sides or b) two sides and the included angle. Study the triangle ABC shown below. Let B stands for the angle at B.

The Law of Sines and the Law of Cosines are mathematical principles used in trigonometry to solve triangles. They help calculate the lengths of sides and measures of angles in triangles, particularly when not all the information is known.

1. Law of Sines:
The Law of Sines relates the ratios of the lengths of sides to the sines of their opposite angles in a triangle. It states that the ratio of the length of a side to the sine of its opposite angle is constant across all sides of a triangle. The formula is as follows:

a/sin(A) = b/sin(B) = c/sin(C)

Here, a, b, and c represent the lengths of the sides, while A, B, and C represent the measures of the opposite angles. This law is especially useful when you know the lengths of two sides and the measure of an angle, or when you know the lengths of two sides and the ratio of the sines of two angles.

2. Law of Cosines:
The Law of Cosines allows you to calculate the lengths of sides or measures of angles in a triangle when you have information about the lengths of sides and/or measures of angles. It relates the lengths of sides to the cosine of one of the angles. The formula can be stated in two different forms:

a² = b² + c² - 2bc * cos(A)
b² = a² + c² - 2ac * cos(B)
c² = a² + b² - 2ab * cos(C)

In these formulas, a, b, and c represent the lengths of the sides, and A, B, and C represent the measures of the angles. This law is useful when you know the lengths of three sides or when you know the lengths of two sides and the measure of the included angle.

Both the Law of Sines and the Law of Cosines are powerful tools in trigonometry that enable the determination of missing information in triangles, allowing for accurate calculations in various mathematical and real-world applications.

What are riverine forests?

Answers

Answer:

Riverine forests are the most productive forests of Sindh; producing wood material for domestic and commercial purposes. The rotation of various species varies from 6 years to 40 years, depending upon market demand of wood.

Explanation:

Answer:

Riverine forests are one of the distinct ecosystems . These are found on the lower flood plains along the rivers edge. The main species found here is one of the deciduous species; the Balsam Poplar. These trees like a high volume of moisture and are able to tolerate flooding.

Think about how the geologic time scale was created and how it is divided. Then answer the following questions.
How did scientists form the geologic time scale?
How is this scale organized?
What processes changed the Earth's environment during Precambrian time?
Please answer with a paragraph or a few sentences correctly.

Answers

After observing variations in fossils as they moved from the most ancient to the most recent sedimentary rocks, geologists were inspired to construct the geologic time scale. They were able to split the history of Earth into numerous distinct periods of time using relative dating to determine when similar organisms existed on the planet.

Today, big chunks of time on the geologic time scale are called eons. Eons can be broken up into smaller pieces called eras, and each era can be broken up into smaller pieces called periods. Figure 12.1 is a picture of the geologic time scale. We are now in the Phanerozoic eon, the Cenozoic era, and the Quarternary period.

Periods are sometimes further divided into epochs, but most of the time they are just called "early" or "late," like "late Jurassic" or "early Cretaceous." Geologic time is not broken up into chunks of the same number of years. Instead, they are broken up into chunks of time when fossils show that similar organisms were living on Earth. On the geologic time scale, pictures are often used to show how life on Earth has changed over time. It also sometimes talks about big things that happened on Earth, like when the big mountains were made or when the dinosaurs died out.

During the pre-Cambrian epoch, the earth's surface was altered by three pre-Cambrian eons: the Hadean Eon, the Archean Eon, and the Project Eon.

-At the beginning of the Precambrian epoch, when the earth was a vast lava plain, asteroids were discovered.

-Since then, the climate of the earth begins to change and the ocean is born, giving life to Earth.

-Oxygen and plumes are beginning to form, and the planet has become an ideal place for microorganisms to live.

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A river meeting the ocean. The river spreads into a triangular shape.

Photo by Mandy Lindeberg


The photo above shows what often happens when rivers meet the ocean – the river spreads out into a triangular shape. What body of water is shown in this photo, and how does erosion help to create it?

Answers

When a river meets an ocean and spreads into what looks like a triangular shape, the landform or body of water being created is called a Delta.

Deltas are:

Formed at the point where a river meets another body of water Formed such that they have a triangular shape Caused by water erosion

Deltas take a triangular shape at the mouth of a river when the river is meeting a water body such as a lake or ocean.

They form because of water erosion resulting from when the river picks up soil particles and carries them to its mouth where they are deposited and obstruct the flow of water thereby creating a delta.

In conclusion, erosion causes a delta to form when water carries soil and deposits it at its mouth.

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Answer:

'When a river meets an ocean and spreads into what looks like a triangular shape, the landform or body of water being created is called a Delta.'

what the person said above me is correct.

Explanation:

Hope this helps!

Earth has had several mass extinctions throughout its long history. Which describes a mass extinction, but not background extinction

Answers

Earth has had several mass extinctions throughout its long history. How would you describe a mass extinction but not background extinction? Fossil evidence shows that some species changed very little over geologic time, while others changed gradually and at a relatively constant rate.

Earth has had several mass extinctions throughout its long history in which several reforms have been changed in the long run.

What is the earth?

The definition of Earth is a member of the solar system where life is known to exist. It is the third planet from the sun and is home to both living and non-living organisms. It has a moon and revolves around the sun.

Certain organisms evolved comparatively somewhat over geological timescales, according to fossil records and archeological reforms, whereas others underwent progressive and rather steady evolution.

This suggests that there were various evaluation that was happening at that time and the people and the creatures evaluated and some were extinct. This suggested that the species were always a part and the fossil for the same can be found.

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THINK LIKE AN ECONOMIST Can you think of at least one good reason that perhaps government should not interfere in market shortages with price-gouging laws? Your response should be 100 words or less.

Answers

Yes, there are a few good reasons why the government should not interfere in market shortages with price-gouging laws. One good reason is that price gouging laws can have unintended consequences on the economy.

For example, when the government intervenes and sets price ceilings on goods, suppliers are forced to sell their goods at lower prices than they are worth, causing them to incur losses. As a result, suppliers might reduce their production, which leads to shortages of goods in the market.

Price gouging laws might also discourage suppliers from entering the market, leading to reduced competition and increased monopoly power for existing suppliers .

Another reason is that the free market, when left to operate without interference, will automatically regulate itself. During a market shortage, suppliers will increase their prices to match the supply and demand. The increased prices signal to the suppliers to increase production, and they will do so until the market reaches equilibrium.

Thus, the market will eventually adjust to the new supply and demand levels.

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Which of these can be found in a plant cell but not in an animal cell?
chromosome
nucleus
chloroplast
cell membrane

Answers

The answer is Chloroplast.

The answer is chloroplast because a chloroplast is a plastid that contains chlorophyll and in which photosynthesis takes place:)

the u.s. midwest has relatively low risk for landslides mainly because the soils are extremely compacted and therefore strong.true or false

Answers

Answer: the answer is False

examples of how chemical weathering may benefit people.

Answers

Answer:

One benefit that chemical weathering has for people is that it helps combat carbon dioxide. By trapping carbon dioxide in the sediment, chemical weathering removes it from the atmosphere. The decrease in carbon dioxide helps counter global warming.

according to plate-tectonic theory, plates of rigid, elastic (fill in blank) move over a weak layer below

Answers

According to plate tectonic theory, plates of rigid, elastic lithosphere move over a weak layer below called the asthenosphere.

The movement of these plates is driven by the convective flow of the asthenosphere, which allows for the relative motion and interaction of the Earth's lithospheric plates.

Plate tectonic theory describes the dynamic behavior of the Earth's lithosphere, which is divided into several rigid plates that interact with each other.

These plates are composed of both continental and oceanic crust and are characterized by their rigidity and ability to move. However, beneath the lithosphere lies a weak and partially molten layer known as the asthenosphere.

The asthenosphere is situated in the upper mantle and is composed of solid rock that behaves in a plastic or ductile manner due to the elevated temperatures and pressures. It has a higher temperature and lower rigidity compared to the overlying lithosphere. This weak and ductile nature of the asthenosphere allows the lithospheric plates to move and interact.

The movement of the plates is driven by the convective flow in the asthenosphere. Heat from the Earth's interior causes the asthenosphere to undergo slow convection currents, resembling the circulation of a viscous fluid.

As the asthenosphere convects, it exerts forces on the underside of the lithospheric plates, causing them to move and interact with one another.

The relative motion of the plates at plate boundaries gives rise to various geological phenomena such as earthquakes, volcanic activity, and the formation of mountain ranges.

The concept of plates moving over a weak asthenosphere layer provides a framework for understanding the processes that shape the Earth's surface and drive the dynamics of the lithosphere.

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When a hard hat sustains an impact, it should:

a) Be repaired
b) Remain in use
c) Be replaced
d) Be inspected

Answers

Answer:

D.

Explanation:

Brainliest?

Why is Canada a federal state?

Answers

Answer:

The foundations of Canadian federalism were laid at the Quebec Conference of 1864. The Quebec Resolutions were a compromise between those who wanted sovereignty vested in the federal government and those who wanted it vested in the provinces

a rapid change in ocean density with change in depth is thea. halocline.b. isocline.c. pycnocline.d. thermocline.

Answers

 A rapid change in ocean density with a change in depth is known as a pycnocline. The pycnocline is a layer in the ocean where there is a significant change in water density due to variations in temperature and salinity.

This change in density creates a barrier between different water layers, impacting the vertical movement of water and the distribution of organisms within the ocean. The other options provided (a) halocline, (b) isocline, and (d) thermocline, are related to different types of vertical oceanic zones or gradients, but they do not specifically describe a rapid change in ocean density with depth like the pycnocline does. Let's dive into a more detailed explanation of each option: Halocline: A halocline refers to a zone in the ocean where there is a significant change in salinity with depth.

This change in salinity can create a barrier that restricts the mixing of waters with different salinity levels.  Isocline: Isocline is a term used in various scientific fields, but in the context of the ocean, it is not a commonly used term to describe a specific oceanographic phenomenon related to density changes with depth.

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Roughly half or 50% of all groundwater is found a depths less than Enter the closest numerical value in the first blank and the correct unit (metric system) in the second space, Zero credit for feet etc. Your answer first answers should be whole numbers and no ranges.

Answers

Roughly half or 50% of all groundwater is found at depths less than 250 meters.

Groundwater is water that is stored beneath the Earth's surface in porous rock formations called aquifers. The depth at which groundwater is found varies depending on factors such as geology and climate. However, studies suggest that approximately 50% of all groundwater is located at depths less than 250 meters (or 250 m).

This means that within the top 250 meters of the Earth's crust, a significant amount of accessible groundwater can be found. Understanding the distribution of groundwater depths is crucial for sustainable water management and the development of effective strategies for groundwater extraction and conservation.

This question should be provided as:

Roughly half or 50% of all groundwater is found a depths less than_______? Enter the closest numerical value in the first blank and the correct unit (metric system) in the second space, Zero credit for feet etc. Your answer first answers should be whole numbers and no ranges.

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10. The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting how rising greenhouse gas concentrations could affect climate. A. The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting B. The effect on global warming of ocean white caps are one of the many aspects of the ocean environment not yet incorporated in any detail into computer models, which they use to predict C. The effect of ocean white caps on global warming is one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used to predict D. That ocean white caps have an effect on global warming is one of the many aspects of the ocean environment not yet having been incorporated in any detail into the computer models that are used for predicting E. That ocean white caps have an effect on global warming is one of the many aspects of the ocean environment not yet being incorporated in any detail into computer models, which they use to predict

Answers

Answer:

A. The global-warming effect of ocean white caps are one of the many aspects of the ocean environment that are not yet incorporated in any detail into the computer models used for predicting

Explanation:

The melting of the ice caps and rise in ocean temperature are the two aspects of climate change and global warming. They are a significant impact of climate change through oceanic acidification and rise in sea level. Lead to thermal expansion that threatens habitats on a  large scale.

What consistencies/inconsistencies exist between all three types of mining?

Answers

Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.

ground-up limestone (caco3) is used as a gentle abrasive in some powdered cleansers. why is this a better choice than ground-up soda ash (na2co3)?

Answers

Ground up limestone (CaCO3) is used as a gentle abrasive in some powdered cleansers. This a better choice than ground up soda ash (Na2CO3), because CaCO, is not soluble in water.

Since limestone naturally contains calcium carbonate and magnesium carbonate, lime is a rock powder soil amendment used in gardening. A healthy lawn and a stronger foundation for plant growth can be achieved by adding lime to garden soil, which increases the alkalinity of acidic soil and adds plant nutrients and minerals.

Two types of lime that are frequently used in lawns and gardens are agricultural lime and dolomitic lime. Agricultural lime (also known as garden lime) is made of calcium carbonate, whereas dolomitic lime is made of dolomite, a rock that is related to limestone and contains both calcium and magnesium. These are not the same as quick lime, hydrated lime, or slaked lime, which are used for a variety of purposes, such as cooking and water treatment, but are not used in agriculture.

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which of the following are the most abundant elements in rocks found in the earth's crust and mantle? group of answer choices iron and aluminum hydrogen and helium oxygen and silicon calcium and carbon

Answers

Oxygen, silicon, iron and aluminum  are the most abundant elements in rocks found in the earth's crust and mantle.

Mantle are made up of molten rocks. Which is known as magma. One percent of the Earth's volume is made up of its crust. The crust is made up of many different elements, some of which are more abundant than others. The Earth's crust contains the most elements, with oxygen, silicon, iron, and aluminum making up 88.1% of its mass.

Oxygen and silicon dominate in both locations .About two thirds of the mantle and three quarters of the crust are comprised of these two elements. Aluminum, iron, calcium, sodium, potassium, and magnesium are among the crust's other abundant elements.

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Why do you think India's established trade route in Vietnam would be beneficial to China and india

Answers

Establishing a trade route in Vietnam would be a bilateral benefit for both India and China. It would help exchange goods between both countries and lead to the economic advancement of the countries involved. This could also result in increased economic cooperation which might even play a key role in strengthening the political bond between the two nations

A trade route in Vietnam would also reduce the price and time taken for trade between the two nations. This would make it easier and more affordable for companies in both countries to do business with one another and lead to a reduction in the selling price. It would result in increased aggregate demand, further cementing the economic conditions of both countries.

Moreover, a trade route in Vietnam would provide a direct and efficient way for the exchange of commodities and cultures of both nations, thus strengthening ties between the nations which would lead to economic and cultural progress for both countries.

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Why do we read/study Shakespeare? (3 reasons)

Answers

Answer:While studying his work gives insight into past culture and society, it also serves as a bridge between our modern time and times far past. His works are still relevant today, addressing themes like love, revenge, social expectation, corruption, transformation, etc.

Explanation:

Rainfall is measured by?​

Answers

Answer:

Inches

Explanation:

Thats what rainfall is measured in

Answer:

Rainfall is measured by millimeters (mm) or inches (in)

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163 ml of hydrogen gas, measured at 23C and 1.5 atm pressure, and 249 ml of nitrogen gas,measured at 23C and 2.6 atm pressure, were forced into the 163 ml container at 23C, whatwould be the pressure (in atm) of the mixture of gases now in the 163 mil container? Enter to 2decimal places. 5. How is the hydrogen gas balloon different from the hot air balloon? explain this in terms of density Which best summarizes the social contract outlined in the Preamble to the Declaration of Independence?Government has the power to protect natural rights, but states must also protect their rights. Government has the power to protect natural rights, but people must also protect their rights.Government has the power to protect natural rights, but people can change their government if it fails to do so.Government has the power to protect natural rights, but states can challenge the government if it fails to do s The Hiking Club plans to go camping in a State park where the probability of rain on any given day is 87%. What is the probability that it will rain on at most two of the seven days they are there? Round your answer to the nearest thousandth. Need help some some plaseeee please help me. i really need it 2+2 okay this is obvious its 4 but how many people can answer that? Helpdndjrjrjrjrjrrhrhd How do genotyping help scientists to determine what plabt are Need help, please answer correctly for branliest! Help me solve the control problem urgently When Panama was created in 1903, why did president Theodore Roosevelt use his power to recognize the nation so quickly? The price of a carton of eggs at Supermarket $A$ is $\$2.10$ . The price of a carton of eggs at Supermarket $B$ is $40\%$ less than the price at Supermarket $A$ .What is the price of a carton of eggs at Supermarket $B$ ?A $\$0.84$84 centsB $\$1.26$1 dollar 26 centsC $\$1.70$1 dollar 70 centsD Should America help support countries with weaker economies in hard times? Consider how the global economy is connected to ours.What are some of the ways that people in developed nations might help people in developing nations achieve higher income levels? within the body itself, internal previews can be used to alert audience members to a shift from one main point or idea to another. t/f Hola, por favor, me gustara opositar al ejrcito de tierra espaol.Pero tengo unas dudas:Se cobra bien?Se puede ser directamente Cabo?Es difcil?En cuantas ocasiones se usa el fusil? Let f (x, y) = (36 x3 y3,27 x4y2). Find a potential function for f (x, y). a a |a| TT b (36 2 y,27 zy2). A sin (a) If prithivi narayan shah had not unified the Nepal, what would have been the present condition of Nepal give your logic in 6 point Which statement about the product is true? 5.643 x 4.6O The product is irrational.The product is neither rational nor irrational.O The nature of the product cannot be determined.O The product is rational. 437.6 rounded to the nearest hundred