Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 31 to 35.
ENVIRONMENTAL CONCERNS
Earth is the only place we know of in the universe that can support human life. (31)_________human activities are making the planet less fit to live on. As the western world (32)_________on consuming two-thirds of the world's resources while half of the world's population do so just to stay alive we are rapidly destroying the very resource we have by which all people can survive and prosper. Everywhere fertile soil is (33) ________ built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover (34)_________. We discharge pollutants into the atmosphere without any thought of the consequences. As a result, the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are (35) ________ increasingly heavy demands on it
(34)....................................
