Lesson: Chapter 15 — The biosphere

Biogeochemical cycles 4 of 4 Reset answers

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Question 4

Why has the carbon cycle been thrown out of balance?

A Plants photosynthesise too much B Decomposers have disappeared C Animals have stopped respiring D Burning fossil fuels returns carbon faster than plants can take it up

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Burning fossil fuels returns carbon faster than plants can take it up. Clearing forests also removes the plants that absorb it.

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