Carbon Cycle and Nitrogen Cycle

Carbon Cycle and Nitrogen Cycle

Assessment

Flashcard

Biology, Science

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

2.

FLASHCARD QUESTION

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient organisms, such as plants and animals, that have been buried and subjected to heat and pressure over millions of years. Examples include coal, oil, and natural gas.

3.

FLASHCARD QUESTION

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria are essential in the nitrogen cycle as they help decompose organic matter and convert nitrogen into forms that plants can use, such as ammonium and nitrates.

4.

FLASHCARD QUESTION

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.

5.

FLASHCARD QUESTION

Front

What is respiration?

Back

Respiration is the process by which living organisms convert glucose and oxygen into energy, releasing carbon dioxide and water as byproducts.

6.

FLASHCARD QUESTION

Front

How does nitrogen fixation occur?

Back

Nitrogen fixation occurs when nitrogen gas from the atmosphere is converted into ammonia or related compounds, primarily through the action of certain bacteria or by lightning.

7.

FLASHCARD QUESTION

Front

What is decomposition?

Back

Decomposition is the process by which dead organic matter is broken down by microorganisms, returning nutrients to the soil and releasing carbon back into the atmosphere.

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