Question

1)Which one of these does not add CO 2 to the atmosphere?
(a) cooking with gas
(b) planting trees
(c) burning wood
(d) riding in a car
2) Respiration and photosynthesis are central to this process
(a) nitrogen cycle
(b) phosphorous cycle
(c) carbon cycle
(d) sulphur cycle

Answer 1

Answer:

planting trees

carbon cycle

Explanation:

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Answer 2

1) (a) cooking with gas

2) (c) carbon cycle

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