Lexical: Environmental concerns

For the question 1-8 chose the correct answer.

Environmental Concerns

Earth is the only (0) place we know of in the universe that can support human life. (1) ... human activities are making the planet less fit to live on. As the western world (2) ... on consuming two-thirds of the world's resources while half of the world's population do so (3) ... to stay alive we are rapidly destroying the very resource we have by which all people can survive and prosper. Everywhere fertile soil is (4) ... built on or washed into the sea. Renewable resources are exploited so much that they will never be able to recover completely. We discharge pollutants into the atmosphere without any thought of the consequences. As a (5) ... the planet's ability to support people is being reduced at the very time when rising human numbers and consumption are (6) ... increasingly heavy demands on it. The Earth's natural resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and minerals to (7) ... us fed, comfortable, healthy and active. If we are sensible in how we use the resources they will (8) ... indefinitely. But if we use them wastefully and excessively they will soon run out and everyone will suffer.