Read the following passage and blacken the letter A, B, C, or D on your answer sheet to indicate the correct
answer to each of the following questions
Since water is the basis of life, composing the greater part of the tissu es of all living things, the
crucial problem of desert animals is to survive in a world where sources of flowing water are rare.
And since man's inexorable necessity is to absorb large quantities of water at frequent intervals,
he can scarcely comprehend that many creatures of the desert pass their entire lives without a
Uncompromising as it is, the desert has not eliminated life but only those forms unable to
withstand its desiccating effects. No moist-skinned, water-loving animals can exist there. Few
large animals are found. The giants of the North American desert are the deer, the coyote, and the
bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than
the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by
stealth. Yet they are not emaciated. Having adapted to their austere environment, they are as
healthy as animals anywhere else in the word.
The secret of their adjustment lies in the combination of behavior and physiology. None could
survive if, like Mad dogs and Englishmen, they went out in the midday sun; many would die in a
matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows
underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert
averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.
Man can hardly understand why many animals live their whole life in the desert,
sources of flowing water are rare in a desert
water composes the greater part of the tissues of living things
water is an essential part of his existence
very few large animals are found in the desert
C. water is an essential part of his existence
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