Harmful effects of pesticides


 
 
Concept Explanation
 

Harmful effects of pesticides

Harmful effects of pesticides: pesticides are not biodegradable, they remain in the field, causing environmental pollution. Contact with pesticides - may cause skin problems and respiratory diseases. Besides, nonbiodegradable pesticides mixwith the soil and water. Crop plants absorb these, and when animals and human beings eat the grains, vegetables or fruits, the pesticides present in them enter their bodies and accumulate in tissues, causing illnesses. Hence, pesticides should be used with great care.

Fruit, vegetables and grains should be washed thoroughly to wash off pesticides.  Since the pesticides ultimately cause environmental pollution, we should adopt preventive measures like the use of resistant varieties, optimum time of sowing the crops and crop rotation.

Sample Questions
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Question : 1

Pesticides are ___________________________, they remain in the field, causing environmental pollution.

Right Option : C
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Question : 2

___________________ should be washed thoroughly to wash off pesticides.

Right Option : D
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Question : 3

Which of the following are correct :

(a) Pesticides are not biodegradable, they remain in the field, causing environmental pollution.

(b) Contact with pesticides - may cause skin problems and respiratory diseases.

Right Option : C
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Explanation
 
 
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