over population is reading to over usage of fertilizers and pesticides to increase food production which is harmful to the environment. now a day organic farming is increasing to prevent bio-magnification of chemicals. rex felt that pesticides do not enter our food grains as they are covered with chaff. his brother led disagreed with him as he had read that. these grains have varying amount of pesticides residences which cannot be removed by washing or other means.
a) how do pesticides and fertilizers affect soil
b) what is the advantage of organic farming
c) what is biological magnification
d) with whom do you agree rex or ted? give reason.
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a. these r not biodegradable .
b. it prevents to increase bio-magnification.
c. the increasing of pesticides in a tropic level.
d. ted .
b. it prevents to increase bio-magnification.
c. the increasing of pesticides in a tropic level.
d. ted .
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