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O-LevelBiologyEcology & Environment5090/12 · May/June 2016 · Q321 Mark

Which greenhouse gas is released from factory chimneys and by herbivores?

Acarbon dioxide

Bnitrogen

Cnitrogen dioxide

Dsulfur dioxide

✓ Correct answer

A: carbon dioxide

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About this question

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2016 Paper 1 Variant 2, question 32.

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