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O-LevelBiologyEcology & Environment5090/12 · Oct/Nov 2015 · Q331 Mark

Some effects of deforestation are listed. 1 less absorption of carbon dioxide from the atmosphere 2 desertification 3 release of carbon from soil and decaying wood by action of microorganisms 4 soil dryness 5 flooding, landslides and soil erosion. Which effects contribute to causing climate change?

A1 and 3
B1 and 5
C2 and 3
D2 and 4

✓ Correct answer

A: 1 and 3

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About this question

Topic
Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2015 Paper 1 Variant 2, question 33.

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