3. Farmers use pesticides to control weeds, insects and diseases. The chemicals which are used to eliminate
weeds and insects have harmful effects on environment.
(a) What are harmful effects of pesticides on environment?
(b) Should farmers use pesticides to protect their crops from weeds, insects and diseases? Give your suggestion.
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Answer:
A. Harmful effects are it reduces fertility of soil...contaminates water resources
B. Farmer should use pesticides but in a controlled manner
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