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Sahara Desert was formed over a period of time due to one of the following uncontrolled activities of man :
(a) excessive cutting down of forest plants and trees
(b) excessive killing of large herbivores
(c) excessive killing of large carnivores
(d) excessive use of poisonous chemicals herbicides
Correct Answer: (c) excessive killing of large carnivores
Explanation: Excessive killing of lions resulted in an increase in the number of herbivores, which in turn consumed all the vegetation. Hence, the Sahara Desert was formed.
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