Answer:
air pollution
Explanation:
How can the golden jelly in Palau survive with harmless nematocysts
The golden jellyfish, scientifically named Mastigias Papua etpisoni, is a unique species that can be found in a lake called Jellyfish Lake in Palau. This lake is filled with millions of golden jellyfish and is considered one of the greatest marine mysteries of the world.The golden jellyfish of Palau live in a saltwater lake where they have thrived for thousands of years.
They coexist in this lake with two different types of photosynthetic algae, including Symbiodinium minutum and Zooxanthellae. The algae are what give these jellyfish their golden color and are the primary source of food for them.The lake in which the jellyfish live is completely landlocked and has no connection to the ocean.
Therefore, they have evolved to survive with no natural predators, which is why their tentacles are completely harmless. The nematocysts found on their tentacles do not contain the toxins that most other species of jellyfish have and cannot harm humans or any other living beings. The lake is also filled with saltwater, which the jellyfish have adapted to live in and survive.
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all you need is in the photo
Answer:
2nd one
Explanation:
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Mira analyzed oxygen and carbon dioxide in inhaled and exhaled air. She found that the percentages of both gases were different
in each.
What other gas would most likely also have different amounts in inhaled and exhaled air?
ozone (O3)
hydrogen (H)
water vapor (H20)
sulfur dioxide (S02)
Water vapor (H2O) would most likely have different amounts in inhaled and exhaled air.
Water vapor is a component of the air we breathe, and its concentration can vary depending on various factors such as humidity and temperature. When we inhale air, it can contain varying levels of water vapor depending on the surrounding environment. However, during exhalation, the air we breathe out usually has a higher concentration of water vapor because our respiratory system adds moisture to the air as we exhale. This difference in water vapor content between inhaled and exhaled air is a natural physiological process in the respiratory system.
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Explain the relationship between the polarity of water and solubility.
Answer:
Polarity. ... Polarity plays a pivotal role in solubility. A polar solute will dissolve in a polar solvent whereas a non-polar solvent will dissolve in a non-polar solvent. If we put a polar solute in a non-polar solvent, it will not dissolve.
Explanation:
The relationship between the polarity of water and solubility is that the polarity of the water determines its solubility capacity.
Polarity is a property of molecules that represents the separation of electrical charges within the molecule, it can be polar or apolar.
Polarity determines whether a substance is soluble or not soluble in water.
Solubility is the measure of the ability of a certain substance to dissolve in another.
Water is a polar molecule due to the spatial arrangement of its polarized bonds.
This polarity determines that the molecules interact strongly.
The solubility of most nonpolar substances in water is very small, since the water molecule is polar, therefore, they will not be able to interact with each other.
For example, oil is not soluble in water, due to the polarity of the water molecules, which is higher than those of oil.
This is because the attraction between the particles of the nonpolar solute (oil) and the polar solvent (water) are not sufficient to cause the dissolution process.
Therefore, we can conclude that the polarity of molecules is a property that is directly related to solubility.
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What do the arrows tell us in a food chain?
The way light is radiated from the sun.
The direction of energy movement.
The movement of each organism in their habitat.
The flow of water within an ecosystem.
Compare and contrast plant and animal cells. Give 3 ways they are alike and 3 ways they are different.
Answer:
1. They both have a cell membrane
2. They both contain cytoplasm
3. They both have mitochondria
1. Plant cells have a cell wall where as animal cells don't have a cell wall.
2. Plant cells have larger, less number of vacuoles and animal cells have smaller, plenty vacuoles.
3. Plant cells have chloroplasts while animal cells don't contain them.
Answer:
Plant and animal cells are similar in many ways, but they also have some key differences. Here are three ways they are alike and three ways they are different:
Ways plant and animal cells are alike:
Both plant and animal cells have a cell membrane that surrounds the cell and regulates what goes in and out.
Both types of cells have a nucleus that contains the cell's genetic material.
Both types of cells have mitochondria, which are responsible for producing energy.
Ways plant and animal cells are different:
Plant cells have a cell wall made of cellulose, which provides structure and support, while animal cells do not.
Plant cells have chloroplasts, which are responsible for photosynthesis and contain chlorophyll, while animal cells do not.
Plant cells often have one large central vacuole, which stores water and helps maintain turgor pressure, while animal cells have smaller vacuoles, if any, which are used for storage and transport.
A species is introduced into a new environment with plentiful resources and few predators. What
will a graph of its population look like at first, and what is this pattern of growth called?
If a species is introduced into a new environment with plentiful resources and few predators, it will get acclimatized to the environment and then grow with very little or no hindrance. The graph of its population will look like letter J and the pattern of grow is called exponential.
An exponential growth will be achieved by a population if:
Resources are unlimited: this will also eliminate competitionThere is little or no predators in the environmentNo recurrent natural disaster taking some members of the population resulting in a more death than birth rates.Hence, with other things being equal, a species introduced into a new environment with few predators and unlimited resources will continue to grow unlimitedly after a few period of getting acclimatized to the environment.
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Which of the following is a way of storing carbon in organic material?
A. Consumption
B. Respiration
C. Burning fossil fuels
D. All of these
The ways of sorting carbon in organic material is consumption, respiration, and fuel burning. The correct option is D.
What is organic material?Organic matter, also known as organic material or natural organic matter, is a massive source of carbon-based compounds detected in natural and engineered, terrestrial and aquatic environments.
There can be several ways to store carbon including consumption, respiration, and burning fossil fuel, etc.
Carbohydrates, lipids, proteins, and nucleic acids are the four primary types of organic compound present in all living things.
Organic compounds are crucial because carbon is found in all living organisms. They are the essential parts of many of the Earth's cycles.
The carbon cycle, for example, encompasses the exchange of carbon between plants and animals during photosynthesis and cellular respiration.
Thus, the correct option is D.
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The possibility of some control over autonomic responses is demonstrated by ________.
A) split brain studies
B) stress-induced hypertension
C) biofeedback
D) nightmares
The possibility of some control over autonomic responses is demonstrated by C) biofeedback.
The possibility of exerting some control over autonomic responses is demonstrated by biofeedback. Biofeedback is a technique that allows individuals to monitor and gain awareness of their physiological processes, such as heart rate, blood pressure, and muscle tension, through real-time feedback.
By receiving this information, individuals can learn to consciously manipulate and regulate these autonomic responses. Through training and practice, they can develop the ability to influence their heart rate, blood pressure, and other physiological functions that are typically regulated involuntarily.
Biofeedback has been used effectively in various contexts, including stress management, pain control, and improving overall well-being, highlighting the potential for limited voluntary control over autonomic responses.
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Which of these structures are found in plant cells but not animal cells? Golgi apparatus Mitochondria Lysosomes Chloroplasts
Answer:
chloroplasts
Explanation:
because chloroplasts help plants to prepare food as they are autotrops
what are some major sources of fresh water in earths hydrosphere
Answer:
oceans, lakes and rivers,groundwater, in wells and aquifers.
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define community in biology
Answer:
An interacting group of various species in a certain location.
Decomposers are organisms that __________. a. feed upon dead organic matter b. include bacteria and benthic worms c. recycle organic matter back to inorganic nutrients d. All of the above are correct. e. None of the above is correct.
feed upon dead organic matter,include bacteria and benthic worms, recycle organic matter back to inorganic nutrients.
Describe the mutation that confers resistance to infection to a major strain of HIV.
Answer:
BIKTARVY® is indicated as a complete regimen for the treatment of HIV-1 infection in adult and pediatric patients weighing ≥25 kg who have no antiretroviral (ARV) treatment history or to replace the current ARV regimen in those who are virologically suppressed (HIV-1 RNA <50 copies per mL) on a stable ARV regimen with no history of treatment failure and no known resistance to any component of BIKTARVY.
which of the following is an example of incomplete dominance? select one: a. color blindness b. major thalassemia c. beta thalassemia d. polymorphism e. abo blood groups
The example of incomplete dominance among the given options is option e, ABO blood groups.
Incomplete dominance is a form of inheritance where neither of the two alleles is completely dominant over the other, resulting in an intermediate phenotype in heterozygotes. Among the given options, ABO blood groups demonstrate incomplete dominance. The ABO blood type system involves three alleles: A, B, and O. The A and B alleles are codominant, while the O allele is recessive. When an individual has both A and B alleles (heterozygous genotype AB), the phenotype is an intermediate blood type, exhibiting both A and B antigens on red blood cells. This intermediate phenotype is an example of incomplete dominance. Therefore, option e, ABO blood groups, is the correct answer.
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When determining how a piece of land is to be used, there are many competing values and needs. Land may need to be used for economic, environmental, social, housing, safety, agricultural, power, conservation and other purposes. When these values conflict, which one do you think is more important?
nah im good i think none are better
how does a cell get energy from an atp molecule
Answer:
Whenever a cell needs energy, it breaks the beta-gamma phosphate bond to create adenosine diphosphate (ADP) and a free phosphate molecule. Cells get energy in the form of ATP through a process called respiration, a series of chemical reactions oxidizing six-carbon glucose to form carbon dioxide.
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somatic cells in animals differ from gametes in that somatic cells __________.
Answer:
contain two sets of each of the chromosome types
Explanation:
Somatic cells are 2n (diploid) so they contain two copies of each chromosome whereas gamete cells are n so they only have 1 of each chromosome.
What is 6.9x10^7 written in standard form
Answer: 6.9 x 10⁷ is a scientific notation.
6.9 x 10⁷ in standard form is 69,000,000
Scientific notation is used to represent very large numbers or very small numbers.
Scientific notation has three parts. Its parts are the coefficient, base of ten, and the exponents.
6.9 is the coefficient
10 is the base of 10
7 is the exponent
The must always be 1 digit before the decimal point in the scientific notation.
The exponent tells us the number of places the decimal point has moved. Its sign tells us the direction of the decimal point's movement.
Since the exponent is positive, it tells us that the decimal point moved from right to left.
69000000. to 6.9000000
If the exponent had a negative sign, it means that the decimal point moved from left to right.
example: 6.9 x 10⁻⁷
its standard form would have been .00000069
Explanation:
the gulf of california is located on the tropic of cancer. at what position of earth, will the sun be exactly overhead at the gulf of california? position 1 position 2 position 3 position 4
The Gulf of California is located on the Cancer Tropic. At d) Position 4, the sun will be directly overhead in the Gulf of California.
The summer solstice is represented by position D in the illustration. It's the condition that occurs when the sun is directly above the cancer tropic( the Gulf of California). Every time on June 22nd, the northern semicircle gests summer solstice while the southern semicircle gests downtime solstice.
The Tropic of Cancer, also known as the Northern Tropic, is the northernmost circle of latitude on Earth where the Sun can be directly above. This happens during the June solstice, when the Northern Hemisphere is at its most inclined toward the Sun.
On the December Solstice, it also reaches 90 degrees below the horizon at solar night. The circle is presently 23 ° 26 ′10.5 ′ ′( or23.43625 °) north of the Equator, according to a constantly streamlined formula.
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Correct question:
The Gulf of California is located on the Tropic of Cancer. At what position of Earth, will the sun be exactly overhead at the Gulf of California?
a) Position 1
b) Position 2
c) Position 3
d) Position 4
Make a list of food preservatives used in different processed food items like jam jelly frozen food pickles ketchup beverage fruit juices ice cream etc .Tell the harmful effects of each of these preservatives on our body
Answer: food preservatives are compound that prevents spoilage caused by microorganisms or by chemical change. These preservatives are manmade or natural. For jam, jelly, pickles, fruit juice, ketchup- benzoic acid, sodium benzoate, sodium meta bisulfate. frozen food items do not require preservatives because food below the temperature of -95 degrees then the growth of microbes is prohibited. carboxymethylcellulose is a stabilizer that is added to frozen food as it will not disturb the nature of the product.
In ice cream, the preservatives added are- nitrites and nitrates these are used to prevent bacterial growth and to improve color, flavor. some chemicals used in ice cream preservation are- magnesium hydroxide, potassium sorbate, and polysorbate 80.
benzoic acid harmful effect - crack the skin
sodium benzoate harmful effect - vomiting, nausea, rhinitis, migraine.
nitrite in food is harmful because it forms the compound in the body called nitrosamines which cause cancer.
Explanation:
In a chemical analysis of animal tissue, which element would most likely be found in the smallest quantity?
Iodine
Hydrogen
Oxygen
Carbon
Explanation:
Carbon, Hydrogen, and Oxygen are all the basis of most of what makes up animal tissues.
Iodine is needed for the body. But, in small amounts. Thus it would be in a much smaller quantity.
Some bacterial cells are resistant to a variety of antimicrobials because they actively pump the drugs out of the cell.
True. Some bacterial cells are resistant to a variety of antimicrobials because they actively pump the drugs out of the cell.
A significant resistance mechanism in Gram-negative bacteria is drug efflux. It expel solutes from the cell. Antimicrobials and metabolites are just a few of the hazardous compounds that Efflux pumps help bacteria remove from their interior environments so they can regulate it.
The main efflux systems in Gram-negative bacteria are members of the RND superfamily and typically consist of an outer membrane protein channel, a periplasmic protein, and a cytoplasmic membrane pump. The most common example is MFS (such as Bmr and Blt in Bacillus subtilis) and the ABC transporters.
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the rate of cell division and cell death are relatively balanced during which phase of the growth curve?
The rate of cell division and cell death are relatively balanced during the log or exponential phase of the growth curve.
What is cell?In biology, the smallest unit that can exist on its own and is made up of all living creatures and bodily tissues. A cell is made up of three major components: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and regulates the molecules that enter and exit the cell. "A cell is described as the smallest, most fundamental element of life, responsible for all of life's operations." All living things have cells that serve as structural, functional, and biological units. A cell may duplicate itself on its own. As a result, they are referred to as the building blocks of life.
Here,
The growth curve is a graphical representation of the growth of a population of cells over time. It is typically divided into four phases: the lag phase, the log or exponential phase, the stationary phase, and the death phase.
During the log or exponential phase, the population of cells is rapidly increasing as cells divide and replicate. The rate of cell division is high, and the rate of cell death is relatively low, leading to a rapid increase in the number of cells.
This phase is characterized by balanced growth, where the rate of cell division is equal to the rate of cell death.
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1. What will raindrops come into contact with first? Consider things like trees, roofs, roadways, or parking lots?
2. Now think about where the rain goes after it makes that first contact. Will it simply pool in place until it evaporates? Will it soak into the ground? Can it be used by plants or animals?
Answer:
1.First raindrops will come in contact with rooftops, treetops, after that it will come in contact with thigs like roads, and grass.
2. Yes sfter it makes first contact it will pool in the place until it evaporates. However, the raindrops which have come in contact with the ground will definetely be soaked up. Plant can use water to produce their food and grow. Animals can use the water for drinking and cleaning themselves.
Explanation:
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What happened when Mendel cross pollinated purple and white flowers?
Mendel then combined these plant lines for purebreeding and noted the characteristics of the hybrid offspring. He discovered that every F1 hybrid of the first generation resembled one of the mother plants.
What will occur if a purple floral and a white flower are crossed?Mendel observed that the F1 generation produced by hybridizing true-breeding progeny plants only exhibited one feature of a characteristic. A true-breeding purple-flowering plant, for instance, might have been crossed with a truthful white-flowering plant.
What happened as a result of Mendel's cross-pollination?However, Mendel found that crossing two distinct purebred plant varieties resulted in offspring that resembled either of the parents, not a combination of the two.
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There is a great deal of evidence that supports the idea that all living things are related.
A. True
B. False
Answer:
True
Explanation:
At the most basic level, all living organisms share the same genetic material (DNA), similar genetic codes, and the same basic process of gene expression (transcription and translation).
Answer:
A. True
Explanation:
Yeah, there is a great deal of evidence that supports the idea that all living things are related.
Which has more of an effect on Earth’s tides, the Moon or the Sun. Explain your answer.
Answer:
The moon does due to gravitational pull on the earth.
Answer:
The moon
Explanation:
its closer
according to the fluid mosaic model,plasma membrane are mainly composed of phospholipids and proteins.Explain how structures S and T play the roles in the plasma membrane,which function as a selective barrier. please help me with this question
Answer:
The plasma membrane is a thin layer of lipid molecules that surrounds the cell and separates the inside from the outside. The fluid mosaic model describes the structure of the plasma membrane as a two-layered structure of phospholipids with embedded proteins. This model explains how the structure of the plasma membrane allows it to act as a selective barrier, regulating the movement of substances in and out of the cell.
Structure S in the plasma membrane is represented by the phospholipids, which form a lipid bilayer with hydrophilic heads facing outwards and hydrophobic tails facing inwards. The hydrophilic heads are in contact with the extracellular fluid and intracellular fluid while the hydrophobic tails are in the middle of the membrane. The phospholipid bilayer provides a barrier that separates the inside and outside of the cell, restricting the movement of hydrophilic and large molecules through the membrane while allowing the passage of small and hydrophobic molecules.
Structure T represents the integral membrane proteins that are embedded in the lipid bilayer. These proteins have different functions, such as transport of molecules, cell signaling, and catalyzing chemical reactions. The proteins also contribute to the selective permeability of the membrane by regulating the movement of specific molecules in and out of the cell. For example, channels and carrier proteins regulate the movement of ions and larger molecules through the membrane while receptor proteins receive signals from the outside of the cell and relay them to the inside of the cell.
In summary, the plasma membrane is mainly composed of phospholipids and proteins according to the fluid mosaic model. The phospholipids form a lipid bilayer that acts as a barrier, while the proteins embedded in the bilayer regulate the selective permeability of the membrane by facilitating the movement of specific molecules in and out of the cell.
Explanation:
Hurricanes are a type of cyclone. They are cyclones that form in the tropics and so they are also called tropical cyclones. By any name, they are the most damaging storms on Earth.
Formation
Hurricanes form in the tropical latitudes (between 10oand 25oN) in summer and autumn when sea surface temperature warm enough. The warm seas create a large humid air mass. The warm air rises and forms a low pressure cell, known as a tropical depression.Thunderstorms form around the tropical depression.
If the temperature reaches or exceeds 28oC (82oF), the air begins to rotate around the low pressure (counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere). As the air rises,water vapor condenses, releasing energy into the storm. Under the right wind conditions, the storm builds into a hurricane within two to three days.
Hurricanes are huge and produce high winds. The exception is the relatively calm eye of the storm, where air is rising upward. Rainfall can be as high as 2.5 cm (1") per hour, resulting in about 20 billion metric tons of water released daily in a hurricane. Hurricanes can also cause tornadoes.
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Damage
Damage from hurricanes comes from the high winds, rainfall, and storm surge. Storm surge occurs as the storm's low pressure center comes onto land, causing the sea level to rise unusually high. A storm surge is often made worse by the hurricane's high winds blowing seawater across the ocean onto the shoreline. Flooding can be devastating, especially along low-lying coastlines such as the Atlantic and Gulf Coasts.
Forecasting Hurricane Routes
Scientists have always struggled with how to best predict the strength and path of a hurricane. Making these predictions can help save lives and decrease the likelihood of property damage. While predicting the intensity of a hurricane is still too difficult for scientists to do effectively, predicting a storm’s path has become more efficient than ever.
Scientists create digital models of the atmosphere as a 3D grid. The grid is made of cubes and each cube has a temperature, pressure, and humidity. As if a wind was blowing through the cubes, each cube talks to its neighbor. Because the atmosphere behaves like a fluid, once you know each cube’s information, you can use mathematics to determine the likely path of the hurricane. For example, we know that high pressure moves to low pressure, so we can determine direction based on that.
Despite having more data than ever, models do not perfectly predict a storm’s path. The main reason is that scientists do not know what the atmosphere looked like when the tropical storm started. Over land, there are many places where scientists are taking constant readings of the earth’s atmosphere. Over the ocean, there are fewer places. Scientists rely on satellites, which have limitations; they cannot see through clouds for example.
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Scientists make computer models called spaghetti plots to show the potential paths of a tropical storm. Each line of the model shows a potential path the storm may take, depending on the atmospheric conditions. As the scientists gather more data, they can remove or change the lines to show current predictions. As long as the scientists keep a line on the map, there is at least some potential that the hurricane may go along that path.
Three-Level Reading Guide: Hurricanes
1. Type a plus (+) next to the statements that say what the reading says. Type a minus (-) next to statements that do not. Cite text-based evidence to support your answer.
___ a. Tropical depressions form when warm air from the sea rises, condenses into clouds, and releases energy.
___ b. In a spaghetti plot, scientists use lines to show possible paths of a tropical storm. As long as a line remains on the map, there is potential for the storm to go that direction.
___ c. The eye of the storm is the most dangerous part, where air is falling downward.
2. Type a plus (+) next to the statements that you think represent the intended meaning of the reading. Type a minus (-) next to statements that do not.
___ a. Hurricanes are not common in the winter and spring because the surface temperature of the water is not warm enough.
___ b. The biggest challenge to create accurate predictions for hurricane paths is the amount of data available.
___ c. Storm surge can be defined as flooding due to the storm’s low pressure center coming onto the land.
3. Read the statements below and finish them using ideas from the text.
The movement of energy is a big part of hurricane development because (reason)
The movement of energy is a big part of hurricane development, but (opposite)
The movement of energy is a big part of hurricane development, so (prediction or outcome)
Answer:
Type a plus (+) next to the statements that say what the reading says. Type a minus (-) next to statements that do not. Cite text-based evidence to support your answer.
a. Tropical depressions form when warm air from the sea rises, condenses into clouds, and releases energy. ( "The warm seas create a large humid air mass. The warm air rises and forms a low pressure cell, known as a tropical depression. Thunderstorms form around the tropical depression.")
b. In a spaghetti plot, scientists use lines to show possible paths of a tropical storm. As long as a line remains on the map, there is potential for the storm to go that direction. ("Each line of the model shows a potential path the storm may take, depending on the atmospheric conditions. As the scientists gather more data, they can remove or change the lines to show current predictions. As long as the scientists keep a line on the map, there is at least some potential that the hurricane may go along that path.")
c. The eye of the storm is the most dangerous part, where air is falling downward. (This statement is incorrect. The eye of the storm is relatively calm, and air is rising upward.)
Type a plus (+) next to the statements that you think represent the intended meaning of the reading. Type a minus (-) next to statements that do not.
a. Hurricanes are not common in the winter and spring because the surface temperature of the water is not warm enough. ("Hurricanes form in the tropical latitudes (between 10oand 25oN) in summer and autumn when sea surface temperature warm enough.")
b. The biggest challenge to create accurate predictions for hurricane paths is the amount of data available. ("Despite having more data than ever, models do not perfectly predict a storm’s path. The main reason is that scientists do not know what the atmosphere looked like when the tropical storm started.")
c. Storm surge can be defined as flooding due to the storm’s low pressure center coming onto the land. ("Storm surge occurs as the storm's low pressure center comes onto land, causing the sea level to rise unusually high.")
Read the statements below and finish them using ideas from the text.
The movement of energy is a big part of hurricane development, but it is not the only factor. There are other variables that can affect hurricane formation and strength, such as wind conditions and moisture in the atmosphere.
The movement of energy is a big part of hurricane development because it drives the circulation of warm, moist air that powers the storm. As warm air rises and cools, it releases heat energy, which fuels the storm and helps it to grow stronger.
The movement of energy is a big part of hurricane development, so accurately predicting the movement and intensity of a storm can help to save lives and minimize property damage. By using digital models and gathering data from satellites and other sources, scientists can create more accurate predictions for where a storm will go and how strong it will be.
Explanation:
hays