Latest estimates are that 11.6 x 106 m2 of rainforest will be destroyed in two hours. Assuming that the initial area of tropical rainforests is 20 x 1012 m2:
a. What is the exponential rate of rainforest destruction?
b. If this rate is representative of the past and future and there were 24.5 x 
of rainforest in 1975, how much rainforest was left (in 
) in 2010?
c. It is estimated that tropical rainforests remove or take-up 0.83 kg(C)/
- year. How much less carbon [kg(C)] was removed in 2010 by rainforests compared to that removed in 1975?
What will be an ideal response?
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