Carbon Cycle

Front

What is the carbon cycle?

Back

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

Front

What role does photosynthesis play in the carbon cycle?

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Photosynthesis is the process by which plants, algae, and some bacteria convert carbon dioxide from the atmosphere into organic matter, using sunlight. This process removes carbon from the atmosphere.

Front

How does respiration contribute to the carbon cycle?

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Respiration is the process by which living organisms convert organic matter into energy, releasing carbon dioxide back into the atmosphere. It is a key part of the carbon cycle.

Front

What is the greenhouse effect?

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The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases, such as carbon dioxide, in the atmosphere. It is significantly influenced by the burning of fossil fuels.

Front

What are decomposers and their role in the carbon cycle?

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Decomposers, like mushrooms, break down dead organic matter, returning carbon to the soil and atmosphere, thus playing a crucial role in recycling carbon.

Front

True or False: All carbon in existence is continually recycled in the carbon cycle.

Back

True. The carbon cycle ensures that carbon is reused and recycled through various processes.

Front

What happens to oxygen levels during a forest fire?

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During a forest fire, oxygen levels in the environment decrease because the fire consumes oxygen to sustain combustion.

Front

What is combustion and its effect on the carbon cycle?

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Combustion is the process of burning fossil fuels, which releases carbon dioxide into the atmosphere, contributing to the greenhouse effect and global warming.

Front

What is the significance of carbon sinks?

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Carbon sinks are natural systems, like forests and oceans, that absorb more carbon dioxide than they release, helping to mitigate climate change.

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How do human activities impact the carbon cycle?

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Human activities, such as deforestation and burning fossil fuels, increase carbon dioxide levels in the atmosphere, disrupting the natural balance of the carbon cycle.