Question 8
Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides?

(a) They are eco-friendly
(b) They turn the fields barren after some time
(c) They adversely affect the useful component from the soil
(d) They destroy the soil fertility

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Solution

(a) They are eco-friendly

Use of fertilisers and pesticides over a long period of time can destroy the soil fertility or soil structure by killing the soil microorganism that recycles nutrients in the soil. It also kills earthworms which are instrumental in making rich humus.

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Question 8
Among the given options, which one is not correct for the use of a large amount of fertilisers and pesticides?

(a) They are eco-friendly
(b) They turn the fields barren after some time
(c) They adversely affect the useful component of the soil
(d) They destroy the soil fertility

Q. Question 7
Which of the following is not true for fertilizers?

(a) They increase the yield.
(b) Their excessive use disturbs the balance of nutrients in soil.
(c) They are generally used in small quantity.
(d) They are environment friendly.

Q. Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides?

Q. Among the given options, which one is not correct for the use of large amount of fertilizers and pesticides?

Q. How do pesticides adversely affect the fertility of soil?

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Question 8 Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides? (a) They are eco-friendly (b) They turn the fields barren after some time (c) They adversely affect the useful component from the soil (d) They destroy the soil fertility

(a) They are eco-friendly Use of fertilisers and pesticides over a long period of time can destroy the soil fertility or soil structure by killing the soil microorganism that recycles nutrients in the soil. It also kills earthworms which are instrumental in making rich humus.

Question 8
Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides?

(a) They are eco-friendly
(b) They turn the fields barren after some time
(c) They adversely affect the useful component from the soil
(d) They destroy the soil fertility

(a) They are eco-friendly

Use of fertilisers and pesticides over a long period of time can destroy the soil fertility or soil structure by killing the soil microorganism that recycles nutrients in the soil. It also kills earthworms which are instrumental in making rich humus.