3. (a) Find out the adverse effects of chemical fertilizers that are used for growing the
high yielding variety of crops?
(b) Can high yielding varieties be grown without them as well? How?
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a. Waterway pollution, chemical burn to crops, increased air pollution, acidification of the soil and mineral depletion of the soil are the adverse effects of chemical fertilizers.
b. High yielding varieties give high reliance on fertilizers.
So growing HYV (High yielding varieties) without chemical fertilizers will be challenging.
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