pls answer 6 and 7 th question
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6 a) insects can develop immunity to the insecticides used to destroy them.
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A) The insecs present may die which help the plants to grow properly.
B) The soil ecosystem might get spoiled and the soil out turns acidic and kills some of the useful minerals required for plants.
B) The soil ecosystem might get spoiled and the soil out turns acidic and kills some of the useful minerals required for plants.
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