試題詳解

30
(A) They are home to a fascinating variety of plants and animals.
(B) Because it stays frozen on the ground, plants cannot use it to grow.
(C) Hot deserts, on the other hand, have high temperatures, usually over 75°F. in the daytime.
(D) In many hot deserts, the wind has blown away the sand, leaving bare rock, boulders, and gravel.