CH 8: Nutrient cycles

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What is a key process in the oxygen cycle that involves plants releasing oxygen?

Decomposition

Respiration (correct)

Metabolism

Combustion

How do plants contribute to the carbon cycle?

By absorbing nitrogen from the soil

By converting carbon dioxide into organic molecules through photosynthesis (correct)

By converting nitrates into ammonia

By releasing carbon dioxide during decomposition

Which process involves the conversion of atmospheric nitrogen into ammonia or nitrates?

Nitrogen Fixation (correct)

Respiration

Photosynthesis

Nitrification

What is the main reason why nitrogen must be converted into usable forms by living organisms?

To synthesize amino acids and nucleic acids Signup and view all the answers

Which process in the carbon cycle involves the burning of organic materials and fossil fuels?

Combustion Signup and view all the answers

What is a critical role of the nutrient cycles in ecosystems?

Maintaining the balance and flow of essential elements Signup and view all the answers

In the nitrogen cycle, what is the final step where nitrates are reduced back to nitrogen gas?

Denitrification Signup and view all the answers

What happens during metabolism and cellular respiration in the carbon cycle?

Organisms metabolize nutrients containing carbon and release carbon dioxide Signup and view all the answers

What is the primary source of water for evaporation in the water cycle?

Oceans Signup and view all the answers

Which term represents the combined process of evaporation and transpiration?

Evapotranspiration Signup and view all the answers

Which process involves water vapor cooling and converting back into liquid form?

Condensation Signup and view all the answers

Which process describes the return of water to Earth in various forms such as rain, sleet, snow, and hail?

Precipitation Signup and view all the answers

What is the process where water seeps into the soil, undergoing filtration and purification?

Infiltration Signup and view all the answers

What process involves plants losing water from their surfaces?

Transpiration Signup and view all the answers

Which term describes the continuous movement of water on, above, and below the surface of the Earth?

Water cycle Signup and view all the answers

What is the primary role of respiration in the oxygen cycle?

Releasing energy from nutrients using oxygen Signup and view all the answers

In the carbon cycle, what process involves the conversion of atmospheric carbon dioxide into organic molecules?

Photosynthesis Signup and view all the answers

What is the significance of photosynthesis in the nitrogen cycle?

Converting atmospheric nitrogen into ammonia or nitrates Signup and view all the answers

Which process returns carbon dioxide back into the atmosphere in the carbon cycle?

Combustion Signup and view all the answers

How do living organisms contribute to the nitrogen cycle through ingestion?

Obtaining nitrogen by consuming plants Signup and view all the answers

What is the primary function of nitrification in the nitrogen cycle?

Converting ammonia to nitrates Signup and view all the answers

Which step completes the oxygen cycle by consuming oxygen produced during photosynthesis?

Respiration Signup and view all the answers

In the carbon cycle, what process involves releasing carbon dioxide by decomposing organisms?

Metabolism and Cellular Respiration Signup and view all the answers

What key process in the water cycle involves water vapor converting back into liquid form?

Condensation Signup and view all the answers

Which process in the water cycle contributes to atmospheric moisture through plant loss?

Transpiration Signup and view all the answers

Which process in the water cycle involves the return of water to Earth in various forms?

Precipitation Signup and view all the answers

What term describes the combined process of evaporation and transpiration?

Evapotranspiration Signup and view all the answers

Which process in the water cycle involves water seeping into the soil and undergoing filtration?

Infiltration Signup and view all the answers

What is the primary source of water for evaporation in the water cycle?

Oceans Signup and view all the answers

Which process in the water cycle involves water freezing into ice or thawing?

Melting and Freezing Signup and view all the answers

How does the nitrogen cycle ensure the availability of nitrogen for living organisms?

By converting atmospheric nitrogen into ammonia or nitrates Signup and view all the answers

What is the primary role of combustion in the carbon cycle?

To convert organic molecules into carbon dioxide Signup and view all the answers

Why are photosynthesis and respiration considered complementary processes in the oxygen cycle?

Because one produces oxygen while the other consumes it Signup and view all the answers

What is the significance of precipitation in the carbon cycle?

It forms carbonates in ocean sediments Signup and view all the answers

In the nitrogen cycle, what is the function of denitrification?

Converting nitrates back to nitrogen gas Signup and view all the answers

Why is decomposition important in the carbon cycle?

To release stored carbon back into the atmosphere Signup and view all the answers

What is a key difference between the oxygen and nitrogen cycles?

The role of photosynthesis in producing oxygen in the oxygen cycle but not in the nitrogen cycle Signup and view all the answers

What distinguishes metabolism and cellular respiration in the carbon cycle from other processes?

Converting stored nutrients containing carbon into energy and releasing carbon dioxide Signup and view all the answers

Which process in the water cycle is responsible for the filtration and purification of water as it permeates deeper into the soil?

Infiltration Signup and view all the answers

Which process in the water cycle significantly contributes to atmospheric moisture through plant loss?

Transpiration Signup and view all the answers

What term describes the combined process of evaporation and transpiration in the water cycle?

Evapotranspiration Signup and view all the answers

Which process in the water cycle involves the conversion of water vapor back into liquid form?

Condensation Signup and view all the answers

Which process in the water cycle returns water to Earth in various forms such as rain, sleet, snow, and hail?

Precipitation Signup and view all the answers

Which process in the water cycle involves water seeping into the soil and undergoing filtration?

Infiltration Signup and view all the answers

What is the primary source of water for evaporation in the water cycle?

Oceans Signup and view all the answers

CH 8: Nutrient cycles

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Questions and Answers

What is a key process in the oxygen cycle that involves plants releasing oxygen?

How do plants contribute to the carbon cycle?

Which process involves the conversion of atmospheric nitrogen into ammonia or nitrates?

What is the main reason why nitrogen must be converted into usable forms by living organisms?

Which process in the carbon cycle involves the burning of organic materials and fossil fuels?

What is a critical role of the nutrient cycles in ecosystems?

In the nitrogen cycle, what is the final step where nitrates are reduced back to nitrogen gas?

What happens during metabolism and cellular respiration in the carbon cycle?

What is the primary source of water for evaporation in the water cycle?

Which term represents the combined process of evaporation and transpiration?

Which process involves water vapor cooling and converting back into liquid form?

Which process describes the return of water to Earth in various forms such as rain, sleet, snow, and hail?

What is the process where water seeps into the soil, undergoing filtration and purification?

What process involves plants losing water from their surfaces?

Which term describes the continuous movement of water on, above, and below the surface of the Earth?

What is the primary role of respiration in the oxygen cycle?

In the carbon cycle, what process involves the conversion of atmospheric carbon dioxide into organic molecules?

What is the significance of photosynthesis in the nitrogen cycle?

Which process returns carbon dioxide back into the atmosphere in the carbon cycle?

How do living organisms contribute to the nitrogen cycle through ingestion?

What is the primary function of nitrification in the nitrogen cycle?

Which step completes the oxygen cycle by consuming oxygen produced during photosynthesis?

In the carbon cycle, what process involves releasing carbon dioxide by decomposing organisms?

What key process in the water cycle involves water vapor converting back into liquid form?

Which process in the water cycle contributes to atmospheric moisture through plant loss?

Which process in the water cycle involves the return of water to Earth in various forms?

What term describes the combined process of evaporation and transpiration?

Which process in the water cycle involves water seeping into the soil and undergoing filtration?

What is the primary source of water for evaporation in the water cycle?

Which process in the water cycle involves water freezing into ice or thawing?

How does the nitrogen cycle ensure the availability of nitrogen for living organisms?

What is the primary role of combustion in the carbon cycle?

Why are photosynthesis and respiration considered complementary processes in the oxygen cycle?

What is the significance of precipitation in the carbon cycle?

In the nitrogen cycle, what is the function of denitrification?

Why is decomposition important in the carbon cycle?

What is a key difference between the oxygen and nitrogen cycles?

What distinguishes metabolism and cellular respiration in the carbon cycle from other processes?

Which process in the water cycle is responsible for the filtration and purification of water as it permeates deeper into the soil?

Which process in the water cycle significantly contributes to atmospheric moisture through plant loss?

What term describes the combined process of evaporation and transpiration in the water cycle?

Which process in the water cycle involves the conversion of water vapor back into liquid form?

Which process in the water cycle returns water to Earth in various forms such as rain, sleet, snow, and hail?

Which process in the water cycle involves water seeping into the soil and undergoing filtration?

What is the primary source of water for evaporation in the water cycle?

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