Вопрос № 1077810 - Английский язык

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Agronomists use the world “pests” in referring to weeds, plant diseases, and insects that threaten crops. Most farmers control pests with chemicals called pesticides. Scientists have developed hundreds of pesticides for use on farms. Each one is designed to fight certain of weeds, plant diseases, or harmful insects. All pesticides must be with extreme care. If they are used improperly, they may pollute the environment or the food supply and so endanger people’s health.
Farmers also use other methods of pest control in addition to pesticides. For example, turning the soil with a plough or mechanical cultivator kills most weeds. However, special pesticides called herbicides control weeds more thoroughly than soil turning does. Some herbicides remain active in the soil for some time and so kill weed seedlings as develop.
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Insects live everywhere on land but not in the ocean. There may be over 30 million different kinds of insects in the world although scientists have not studied all of them yet, and many have no names.
Insects are very important in the world. They pollinate plants and help to break up the ground. Although some insects can hurt people or plants, other insects kill these dangerous ones. Insects are the food of many other animals.
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Where don’t insects live?

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