What percentage of Africans live in sub-Saharan Africa?

Allowing water to infiltrate the slope would increase the risk of having a landslide.

Water plays a crucial role in slope stability. When water infiltrates the slope, it increases the pore pressure within the soil or rock mass, reducing the frictional forces and cohesion that hold the materials together. This loss of strength can make the slope more susceptible to failure and increase the risk of a landslide occurring.

On the other hand, removing weight at the top of the slope can actually reduce the risk of landslides as it decreases the gravitational forces acting on the slope. Adding support to the toe of the slope can also help stabilize the slope and mitigate the risk of landslides.

Recontouring the slope to reduce its slope angle can help improve stability by reducing the forces acting perpendicular to the slope. Planting vegetation that has deep roots can also be beneficial as it helps bind the soil together, increases infiltration capacity, and reduces erosion, thus reducing the risk of landslides.

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Answer:

YES

Explanation:

Hoyt's sector model and the concentric model are both urban land use models that describe the spatial organization of cities. While they have some similarities, they also have distinct characteristics.

Let's explore their similarities:

Central Business District, Urban Expansion, Zones of Transition and Influence of Transportation.

Despite these similarities, there are notable differences between the two models. The concentric model, proposed by Ernest Burgess, envisions a city developing in concentric rings outward from the CBD.

It suggests that as the city grows, new rings of development form around the central core, with each ring representing a different land use or zone.

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The flow of a stream typically becomes more gentle as it moves away from its headwaters or source.

Moving away from its headwaters or source, the flow of a stream usually becomes more gentle.

Explanation: As a stream or river flows downstream, several factors contribute to a decrease in its flow velocity and energy.

These factors include the increasing size and number of tributaries joining the main stream, the widening of the channel, and a decrease in the slope or gradient of the land.

As the stream progresses downstream, it tends to meander and develop a more mature and stable profile. The gentler flow allows the stream to transport and deposit finer sediments such as sand, silt, and clay. These finer particles settle and accumulate along the streambed and its banks.

The decrease in flow velocity also leads to changes in the stream's geomorphology. The channel tends to widen and deepen, and the water tends to become more tranquil compared to the fast-moving, turbulent flow near the headwaters.

Overall, the transition from the headwaters to downstream areas is characterized by a gradual decrease in flow velocity and energy, resulting in a more gentle and stable flow of water.

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Carbon dioxide gas needed to be established within the Earth's atmosphere. Light is absorbed by greenhouse gas molecules in the atmosphere, preventing part of it from exiting the Earth, and this warms up the atmosphere and boosts the average temperature of the planet. Option D is correct.

Carbon dioxide is required for human internal respiration. Internal respiration is the process by which oxygen is transferred to and carbon dioxide is removed from human tissues. Carbon dioxide protects the blood's pH, which is critical for survival.

Most animals, which exhale carbon dioxide as a waste product, are natural sources of carbon dioxide. Carbon dioxide emissions are mostly caused by human activities such as the combustion of coal, oil, or natural gas. The molecules of greenhouse gas in the atmosphere absorb light, preventing some of it from leaving the Earth.

The presence of carbon dioxide in the atmosphere heats the earth, resulting in climate change. In fewer than 200 years, human activities have increased the carbon dioxide concentration of the atmosphere by 50%.    Carbon dioxide gas has to be introduced into the Earth's atmosphere.

Therefore, option D is correct.

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This process creates volcanic mountains. Volcanic mountains are formed by volcanic activities on the earth's surface.

Mountains are often formed by the movement of tectonic plates on the earth's crust. The crust itself is made by the different large tectonic plates.

There are three ways to form a mountain which is following, volcanic, fold, and block mountains.

The great African rift valley and Rhine valley in Germany is an examples of block mountains.

Fold mountains are the Himalayas, Alps, and the Rockies.

Valcanic mountains are Vesuvius, Kilimanjaro, and Mount Fuji.

Therefore the correct option is C.

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Answer:

Animals evolved separately on each continent. ... Animals swam across the ocean to new continents. Continents were once one landmass and have drifted apart.

Explanation:

1) The major developments between 1848 and 1861 that contributed to the Civil War were the Wilmot Proviso, the Compromise of 1850, the Kansas-Nebraska Act of 1854, and the Dred Scott Decision of 1857.

The Wilmot Proviso proposed to exclude slavery from newly acquired territory in the Mexican-American War, the Compromise of 1850 addressed slavery in the West, the Kansas-Nebraska Act allowed for popular sovereignty in the newly organized territories of Kansas and Nebraska, and the Dred Scott Decision ruled that slaves were not citizens and therefore had no standing in court.

Arguably, the Dred Scott Decision was the most significant development as it made clear the limits of the Supreme Court on the issue of slavery and sparked fears among Northerners that the institution of slavery could spread to more states.

2) Lincoln's House Divided Speech declared that slavery was inconsistent with the founders' principles of freedom, and that the nation could not last half-slave and half-free. He argued that the nation was on a collision course and a house divided cannot stand.

Someone from the South who followed the ideological discussions around the question of slavery would have reason to be concerned as Lincoln's opinions regarding slavery seemed to be more aligned with those of abolitionists. The speech would not satisfy an ardent abolitionist as it was more ambiguous than a full endorsement of abolition.

The ideas in the speech reflect the times in which it was given as it reflects the heated tensions between the North and South and the growing divide between those who supported and opposed slavery.

Other main events in the march towards Civil War, such as the Kansas-Nebraska Act and the publication of Uncle Tom's Cabin, had influenced Lincoln's thinking on slavery and the part it plays in the Union at this point.

From the speech, Lincoln's thoughts on the founders of the United States and the writers of the Constitution at the Constitutional Convention in Philadelphia seem to be that the founders did not believe that slavery was in line with their beliefs of freedom.

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All planetary orbits are almost circular, however comet orbits are incredibly eccentric. Despite the fact that comet and planetary orbits both resemble cigars and circles, respectively, all orbits around the sun are elliptic.

An ice, tiny object in the Solar System known as a comet warms up and starts to emit gases as it approaches the Sun; this process is known as outgassing. In some cases, a tail is also produced along with a visible atmosphere or coma. These occurrences are brought on by the comet's nucleus being subjected to solar radiation and solar wind effects. A comet can subtend an arc of the sky that is 30° (60 Moons) across if it is brilliant enough to be seen from Earth without the use of a telescope. There is a vast range of orbital durations for comets, from a few years to potentially millions of years, and they often have very eccentric elliptical orbits. It is referred to as an apparition when a comet appears.

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One example of how we are moving towards a more sustainable society is the increasing use of electric cars. This is currently happening within the past 5 years as more and more people are choosing to purchase electric cars instead of traditional gasoline-powered cars.

The example is the adoption of electric cars as a more sustainable form of transportation. This is occurring in many countries around the world, including the United States, China, and many European countries. The people involved include car manufacturers, who are producing more electric cars, and consumers, who are choosing to purchase and drive electric cars.

All citizens can participate in this move towards sustainability by choosing to purchase and drive electric cars. However, it is important to note that electric cars are still relatively expensive and may not be accessible to all citizens.

By using electric cars instead of traditional gasoline-powered cars, we are reducing our reliance on fossil fuels and decreasing the amount of greenhouse gas emissions that contribute to climate change. This is moving us in the right direction to saving our natural resources and environment because it is helping to mitigate the negative impacts of climate change and reduce our carbon footprint.

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Answer:

190 countries

Stanley Miller's 1952 experiment aimed at simulate the conditions of Earth's early atmosphere and oceans and test the hypothesis that simple organic molecules, such as amino acids, could be formed under these conditions.

In the experiment, Miller created a closed system that consisted of a mixture of gases believed to be present in Earth's primitive atmosphere, including methane, ammonia, water vapor, and hydrogen. This mixture was exposed to an electric discharge to simulate lightning, which was believed to be one of the energy sources on early Earth. The experiment was conducted over the course of a week, and the resulting products were analyzed.

The remarkable outcome of the experiment was the formation of various organic compounds, including amino acids, which are the building blocks of proteins. Amino acids are essential for life as we know it, and their presence in the Miller-Urey experiment provided strong evidence that the early Earth's conditions were conducive to the formation of organic molecules.

This experiment had profound implications for our understanding of the origins of life on Earth. It suggested that the basic building blocks of life could have emerged through natural processes in the early Earth's environment. While Miller's experiment did not directly produce life itself, it demonstrated that the chemical precursors necessary for life's emergence could be generated under plausible early Earth conditions.

Since Miller's experiment, further research and refinements have been conducted in origin of life studies, expanding our knowledge of the chemical processes involved in the emergence of life. While the specific conditions and mechanisms leading to the origin of life are still subjects of scientific investigation and debate, Miller's experiment laid a foundation for understanding how the fundamental components of life could have arisen from the early Earth's environment.

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Explanation:

service industry is growing high teach sector accounts for a large shape .

Answer:

we all have the capacity to be good and evil.

Explanation:

What we determine as evil is determined by circumstance. A man may rob a store for a variety of reasons. If he does it to spite the business owner, he may be evil. If he does it to support his family, that isn't the same thing. Many of us would do the same if forced to do so.

Answer:

The characteristics that the US has in common with the Roman Republic is that it is a republic, it limits elected officials' terms, representatives are elected, the government's duties are split up.

Explanation:

It is a republic; is correct because both the US and the Roman Republic fall into this category.

It limits elected officials' terms; is correct because the officials only get a certain amount of time from one election.

In emergencies, a dictator rules; this is not correct because there has not been such occurrence in the US.

Representatives are elected; is correct because in both of them elections have been and are held.

The head of state is called a consul; this is not correct because a consul has not been in charge of either of the two.

The government's duties are split up; is correct because the government has numerous representatives, all of which with a special task to perform.

The true statement is earthquake magnitude is based on ground motion recorded by a seismograph; intensity is based on the amount of damage produced. Option B is the answer.

The correct answer to the second question is B. The  could have resulted in an even greater death toll, but for the timely warnings issued immediately after the earthquake.

A abrupt shaking or trembling of the Earth's crust is known as an earthquake, and it is typically brought on by the movement of tectonic plates. These plates are continually shifting, bumping into one another, and sliding past one another. When this happens, seismic waves are created that travel through the Earth's crust and cause the ground to tremble.

The Richter scale, which is based on the amplitude of the seismic waves captured by seismographs, is used to determine an earthquake's magnitude. In addition to causing additional damage and fatalities, landslides, tsunamis, and liquefaction are secondary hazards that can be brought on by earthquakes.

The tsunami event of December 26, event involved a magnitude 9.1 earthquake that lasted for several minutes and caused a series of destructive tsunamis that affected many countries in the Indian Ocean, not just Sumatra.

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Cecilia Payne discovered the elements hydrogen and helium on the sun, but she initially doubted her findings.

Cecilia Payne, an astronomer, made significant contributions to our understanding of the composition of stars, particularly the sun. In the early 20th century, she conducted extensive research on stellar spectra and analyzed the light emitted by various celestial bodies. During her studies, Payne observed that the spectrum of the sun contained prominent lines corresponding to two elements: hydrogen and helium.

However, when Payne published her results, she added a comment expressing doubt about her discovery. This hesitation stemmed from the prevailing scientific belief at the time, which held that the Earth's composition should be representative of other celestial bodies. Since the Earth's composition primarily consists of heavier elements like oxygen, carbon, and iron, Payne initially thought it was unlikely for the sun to be predominantly composed of lighter elements like hydrogen and helium.

Nonetheless, Payne's observations and analysis were accurate. Her groundbreaking research laid the foundation for our understanding of stellar evolution and the composition of stars, including the sun. Later advancements in astrophysics confirmed that hydrogen and helium are indeed the primary elements in the sun, comprising about 99% of its mass.

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Hi, there! :)

Answer: A. The term "fecundity" refers to an organism's physical ability to reproduce, while fertility is the actual number of offspring produced.

Fecundity is the potential reproductive capacity of an organism, while fertility refers to the actual reproductive output, which may be affected by factors such as:

For example, a female may have high fecundity in terms of her ability to produce offspring, but if she only produces a small number of offspring due to unfavorable conditions, her fertility would be low.

Hope that helps! Good luck! ^_^

The term fecundity refers to an organism's physical ability to reproduce, while fertility is the actual number of offspring produced.

Fecundity is determined by various factors such as age, health, and genetics, while fertility is influenced by factors such as the number of viable eggs or sperm produced and successful fertilization and implantation. It is important to note that while fecundity is necessary for fertility, it does not guarantee it, as other factors such as environmental conditions can affect an organism's ability to successfully reproduce. In summary, fecundity and fertility are related but distinct concepts that play important roles in an organism's reproductive success. This answer is approximately 100 words long.
The term "fecundity" refers to an organism's physical ability to reproduce, while fertility is the actual number of offspring produced. Therefore, the correct answer is option A: physical ability to reproduce, the actual number of offspring produced.

Fecundity is the potential reproductive capacity of an organism, which includes factors such as the number of eggs or sperm produced, the rate of successful fertilization, and the organism's age-specific ability to reproduce. Fertility, on the other hand, is the actual realization of this potential, meaning it is the number of offspring produced by an individual or a population. Fecundity and fertility are related concepts but have distinct meanings in the context of biological reproduction.

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A protolith c. may belong to any of the three primary rock types. This means it can be an igneous, sedimentary, or metamorphic rock before undergoing metamorphism to become a new metamorphic rock.

One of the three primary rock types, along with sedimentary and metamorphic rocks, is igneous rock, also known as magmatic rock. When lava or magma cools and solidifies, igneous rocks are created. The partial melting of pre-existing materials in the mantle or crust of a planet can produce the magma.

The formation of sedimentary rocks involves the build-up or deposition of organic or minerals at the Earth's surface, resulting in cementation. The mechanisms that lead to the accumulation of these particles are collectively referred to as sedimentation.

Although they began as a different kind of rock, metamorphic rocks have undergone significant alteration from their igneous, sedimentary, or previous metamorphic forms. When rocks are exposed to extreme temperatures, high pressures, hot mineral-rich fluids, or, more frequently, a mixture of these conditions, metamorphic rocks are created.

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Answer:

As the Indian plate is moving northward relative to the Eurasian plate and collides with it, a convergent boundary is created. On the opposite side, the Indo-African boundary is divergent. The western Indo-Arabian boundary is lateral relative to each other giving rise to a transform boundary.

The Indian plate is moving northward relative to the Eurasian plate and collides with it, a convergent boundary is created.

The Mid Atlantic Ridge, like other ocean ridge systems, has evolved resulting from the divergent motion between the Eurasian and North American, and African and South American Plates.

The Indian Plate is presently shifting north-east at 5 centimeters (2.0 in) per 12 months, at the same time as the Eurasian Plate is transferring north at simplest two centimeters, consistent with yr. that is inflicting the Eurasian Plate to deform, and the Indian Plate to compress at a charge of 4 millimeters (0.16 in) per year.

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D)Africa relies too heavily on importing goods

-this is because of lack to manufacture local products.due to competition by cheap imports

Africa has high rate of unemployment and inequality. The region has a corrupt form of system which is not interested in investing money in education and other developmental aspects. Being under the colonial rule of many centuries of Africa.

Hence the option B is correct.

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One can project that ∆ABC is congruent to ∆A′B′C′ through a translation of (x-2, y) unit(s) and a across the x-axis.

The triangle ABC is shown in the image attached. The coordinates of the triangle are A(8, 8), B(10, 4), C(2, 6), while the triangle A'B'C' is at A'(6, -8), B'(8, -4), C'(0, -6).

A transformation refers to the movement of a point from its initial location to a new location.

The types are:

If a point O (x, y) is translated a units on the x axis and b units on the y axis, the new coordinate is O' (x+a, y+b).

If a point O (x, y) is reflected across the x axis, the new coordinate is O' (x, -y)

Therefore, if triangle ABC is translated -2 units on the x axis (2 units left), the new coordinates are A*(6, 8), B*(8, 4), C*(0, 6). If a reflection across the x axis is then done, the new coordinates are A'(6, -8), B'(8, -4), C'(0, -6).

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Answer:

1 unit to the left and reflection across x axis

Explanation:

If an asteroid were to make it through earth's atmosphere and strike the surface, it would be a(n) Meteor  ; if it exploded in the atmosphere, it would be a(n) meteorite.

A comet is a small, ice-and-dust-filled object that orbits the Sun and enters a coma as it gets closer.A comet is a small planet made mostly of gas, dust, and ice that travels around the sun in an extremely eccentric orbit, enters a coma, and occasionally has a tail of gas and dust blown back from it by the solar wind as it approaches the sun.

Unlike chemical or nuclear explosives, large meteoroids do not explode. Instead, the meteoroid's leading face experiences enormous ram pressure at a crucial point in its atmospheric entry, converting the body's enormous momentum into a force that blows it apart almost immediately.

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Answer:

It’s because the Indian subcontinent is surrounded by water on three sides of its land