Exam-style Questions: Environmental Problems
Label the following as "renewable" or "fossil" fuels...
(Marks available: 6)
Answer outline and marking scheme for question: 1
(Total = 6 marks)
What are the 2 main greenhouse gases?
(Marks available: 2)
Answer outline and marking scheme for question: 2
(i) Carbon dioxide;
(Total = 2 marks)
Name and briefly describe the 4 main effects of deforestation.
(Marks available: 8)
Answer outline and marking scheme for question: 3
a) Decrease in rainfall - less trees means less transpiration and photosynthesis.
b) Soil erosion - the expanded soil dries out under the Sun;
c) Serious flooding - rainwater runs off the exposed soil rather than soaking in as before;
d) More carbon dioxide - the trees that used to remove the gas are gone.
(Total = 8 marks)
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