ECOLOGY
ENVIRONMENTAL ISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Clearing land for more homes
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Cutting trees and bushes for firewood
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Wild animals eating all of the plants
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larger numbers of migrating birds
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Detailed explanation-1: -The various causes of desertification are overgrazing, deforestation (reckless felling of trees), excessive use of fertilizers and pesticides, improper practices used by farmers, excessive pulling up of groundwater, urbanization, climate change, soil pollution, etc.
Detailed explanation-2: -’Climatic variations’ and ‘Human activities’ can be regarded as the two main causes of desertification. removal of the natural vegetation coverby taking too much fuel wood, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.
Detailed explanation-3: -Human activities that contribute to desertification include the expansion and intensive use of agricultural lands, poor irrigation practices, deforestation, and overgrazing.
Detailed explanation-4: -Desertification can be caused by many factors, including deforestation, overpopulation, poor agricultural practices or climate change.