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OCR GCSE biology > B4.1.7 > Flashcards

B4.1.7 Flashcards

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1
Q

How is CO2 removed from the environment

A

It’s removed from the environment during photosynthesis

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2
Q

How is CO2 released into the environment

A

Respiration
Decomposition
Burning fossil fuels

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3
Q

Why do CO2 levels vary throughout the day

A

Photosynthesis can only happen during the day as light is needed
Respiration is carried out all the time by living organisms

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4
Q

What does carbon in decaying waste matter become

A

Over millions of years plants and animals become fossil fuels

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OCR GCSE biology (87 decks)

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