Part 4: Questions from 51 to 55.(1 point - 0.2/ each)

Earth is the only place we know of in the universe that can support human life (56) ______ human activities are making the planet less fit to live on. As the western world carries on consuming two-thirds of the world's resources while half of the world's population do so (57) ______ to stay alive we are rapidly destroying the (58) ______ resource we have by which all people can survive and prosper. Everywhere fertile soil is (59) ______ built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover (60) ______ We discharge pollutants into the atmosphere without any thought of the consequences. As a (61) ______ the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are (62) ______increasingly heavy demands on it.

The Earth's (63) ______ resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to (64) ______ us fed, comfortable, healthy and active. If we are sensible in how we use the resources they will (65)______ indefinitely. But if we use them wastefully and excessively they will soon run out and everyone will suffer.

56. A. still B. despite C. yet D. although

57. A. for B. just C. already D. entirely

58. A. lone B. Individual C. lonely D. alone

59. A. sooner B. rather C. either D. neither

60. A. completely B. quite C. greatly D. utterly

61. A. result B. product C. development D. reaction

62. A. having B. doing C. taking D. making

63. A. natural B. real C. living D. genuine

64. A. stay B. keep C. maintain D. hold

65. A. last B. stand C. remain D. go