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Question 18M.1.SL.TZ2.19

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.1.SL.TZ2.19
Level SL Paper 1 Time zone TZ2
Command term Question number 19 Adapted from N/A
19.
[Maximum mark: 1]
18M.1.SL.TZ2.19

What describes a possible cause of a negative carbon flux in the atmosphere due to processes occurring in a forest ecosystem?

A. The trees grew more so fixed more carbon dioxide.

B. There was more respiration by soil organisms.

C. There was more burning of forests.

D. There was more decomposition of leaf litter.

[1]

Markscheme

A

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