Carbon and Nitrogen Cycles Assignment

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What is nitrogen fixation?

Back

The process of converting atmospheric nitrogen into a form usable by plants, primarily carried out by bacteria in the soil and through lightning.

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What role do bacteria play in the nitrogen cycle?

Back

Bacteria in the soil fix nitrogen from the atmosphere, making it available for plants to absorb.

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Why is nitrogen essential for living organisms?

Back

Nitrogen is a crucial component of amino acids, proteins, and nucleic acids, which are necessary for growth and survival.

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What are fossil fuels?

Back

Natural substances formed from the remains of ancient organisms that have been buried and subjected to heat and pressure over millions of years.

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How do plants absorb nitrogen?

Back

Plants absorb nitrogen in the form of nitrates and ammonium through their roots from the soil.

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What is the significance of the carbon cycle?

Back

The carbon cycle is essential for regulating Earth's climate and supporting life by recycling carbon among the atmosphere, land, and oceans.

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What is the process of photosynthesis?

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Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

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What is the role of decomposers in the nitrogen cycle?

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Decomposers break down dead organic matter, returning nitrogen to the soil in a form that can be reused by plants.

Front

What is nitrification?

Back

Nitrification is the process by which ammonia is converted into nitrates by bacteria in the soil.

Front

What is the impact of human activities on the nitrogen cycle?

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Human activities, such as the use of fertilizers and fossil fuel combustion, can disrupt the nitrogen cycle, leading to pollution and ecosystem imbalances.