11. According to t
he DPSİR model choose the main driver for the circulation of
substances in the biosphere?
A) Human activity
B)
Energy transformation
C) The activity of plants
D) Animal activity
E)
The effect of gravity
12. Which of the following carbon stores holds the most carbon?
A) Sediments and sedimentary rock
B) Atmosphere
C) Coal, oil and gas
D) Fossil fuels
E) Forests
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