Acid rain corrodes both stone and buildings. It can cause thousands of dollars of damage.
Because gm crops can't replace everything. yes even they can make a better species and increase the productivity, but some countries or farmers might not have the technology to replace all the crops with gm crops, and they still have to rely on chemical fertilisers. chemical fertilisers can be deadly as if u overuse them, it can pollute the water and leading to euthrophication, where it can kill sea animals
100 years. Thus, (C) is the correct option.
The answer is C, due to the fact that the Area of a square is Base times Height, and the Area of a Circle is radius squared times pi.
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