Вопрос № 884516 - Английский язык

After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control.
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After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate …

After crops have begun to grow, a cultivator is used to destroy weeds and loosen and aerate the soil. A flame weeder, which produces a hot-air blast, can be used to destroy weeds growing around crops, such as cotton, that have stems of tough bark. The weeds are vulnerable to the hot air, but the tough stems protect the crops from damage. Chemical herbicides applied in the form of a spray or as granules are used extensively for weed control.
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Insecticides for pest control are applied to soil and crops in the form of granules, dust, or liquid sprays. A variety of mechanical spraying and dusting equipment is used to spread chemicals on crops and fields; the machinery may be self-powered, or drawn and powered by a tractor. In areas where large crops of vegetables and grain are grown, aircraft are sometimes used to dust or spray pesticides.
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The machinery may be self-powered, or drawn and powered by …

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Chemical pesticides are used in nearly all farming operations undertaken in developed countries. However, increasing concern over the harmful effects that pesticides may have on the environment has led to the use of alternative forms of pest control. For example, farmers use crop rotation to prevent pests that feed on a certain crop. Also, certain pests are controlled by introducing an organism that damages or kills the pests, but leaves the crops unharmed. Finally, some crops are being genetically engineered to be more resistant to pests.
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Some crops are being genetically engineered to be more resistant to …

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Do you like tomatoes? Although people generally think of and use the tomato as a vegetable, in fact it is not one. It’s a fruit.
People in Central America have been eating tomatoes for many thousands of years. However, it was not until the Spanish arrived in Mexico in the early 1500s that tomatoes came to Europe. Before that, no one in Europe had ever seen a tomato! When tomatoes first appeared in Italy and Britain, many people were scared. Tomatoes were thought by many people to be poisonous. They refused to eat them and grew tomatoes only as plants for decoration. Since then, the tomato has become extremely popular. Can you imagine what food today would be like without it?
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Since then, the tomato has become extremely …

London is popular with foreigners, who visit the city in order to see many of its ______ buildings and tourist attractions.