Question 32
Question 32 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
19. Relationships of orga...
19.4. Effects of humans on ecosyste...

Outline the causes and describe the consequences of deforestation, limited to its effects on: biodiversity, extinction, loss of soil, flooding and concentration of carbon dioxide in the atmosphere

13. Excretion
13.1. Excretion

State that carbon dioxide is a waste product of respiration, which is excreted through the lungs

19. Relationships of orga...
19.2. Nutrient cycles

Describe the carbon cycle, limited to: photosynthesis, respiration, feeding, decomposition, formation of fossil fuels and combustion