Section: Reading

75) View Additional Information

The author's main purpose in the passage is to:

show that the United States coast was threatened by the enemy in World War II.
explain some of the complexities of deepsea life.
illustrate the main problems faced by undersea researchers.
gain public support for oceanographic expeditions.

Explanation

While each of the choices may be valid, most of the passage is devoted to a description of life far below the surface of the sea.

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