EARTH SCIENCE
GEOBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Natural selection has been altered because the insects and their predators are killed.
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The rate of selection is increased because the pesticides do not kill the insects that are naturally resistant to it.
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The rate of selection has decreased because the pesticides kill only young insects.
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The pesticides have altered natural selection by causing the insect DNA to spontaneously mutate.
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Detailed explanation-1: -What has been the greatest effect of natural selection through the use of pesticides on certain insect populations? The rate of selection has increased because the pesticides do not kill the insects that are naturally resistant to it.
Detailed explanation-2: -Pesticides can contaminate soil, water, turf, and other vegetation. In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants.
Detailed explanation-3: -Pesticides benefit the crops; however, they also impose a serious negative impact on the environment. Excessive use of pesticides may lead to the destruction of biodiversity. Many birds, aquatic organisms and animals are under the threat of harmful pesticides for their survival.
Detailed explanation-4: -Pesticide use has many benefits, including controlling harmful pests, diseases and invasive plants that can impact crops and the natural environment. But pesticide use can potentially have harmful environmental impacts as well, particulary when a pesticide moves outside of the intended application site.