Answer:
A. to prevent the spread of malaria in tropical areas
Explanation:
Dichlorodiphenyltrichloroethane (DDT) is an insecticide used in agriculture. The United States banned the use of DDT in 1972, but some countries still use the chemical. DDT has also been used in the past for the treatment of lice. It is still in use outside the United States for the control of mosquitoes that spread malaria. DDT and its related chemicals persist for a long time in the environment and in animal tissues.
<span>Coordinate adjectives are adjectives that appear in sequence with one another to modify the same noun. For example, the adjectives in the phrases bright, sunny day and dark and stormy night are coordinate adjectives.</span>
Answer:
A - The author tells the readers about the purpose of a bicycle chain.
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A topographic map<span> is a type of </span>map<span> characterized by large-</span>scale<span> detail </span>