4. We need to limit the consumption of fossil fuels because the (use) use of the materials will lead to damaging effects on the environment. 5. Effective environmental (protect) protection requires a reduction in fuel consumption. 6. Rising sea level is not one nation's problem but it creates a (globe) global impact. Every country in the world will be affected. 7. If oil (drill) drilling activity increases, the prices will be reduced considerably and the energy crisis can be over. IV. 1. Grand Canyon is a land of breathtaking natural beauty and wide regional diversity which is created by massive mountains, plain areas and deserts. D. feature 2. In the Philippines, illegal logging is already occurring on a mass scale, which causes the decline of 20% the entire forest area. C. vast V. 1. We always turn off all the electric appliances after working hours to conserve energy in the office. B. overuse 2. Something must definitely be done about global warming or wildfires will start more easily and spread more rapidly. D. possibly VI. 1. This nature reserve is a haven for birds and other wildlife. 2. I don't want to move to the quiet suburbs because I have been used to the busy city life. 3. Africa is a continent rich in natural resources including platinum, gold and uranium. 4. The whole food chain is under threat because of the overuse of pesticides in agriculture. 5. Yellowstone is the most famous national park in the USA covering 3,500 square miles with hundreds of animal species, lush forests and hot springs. 6. A character of the vegetation of the tropical forest in this area is large and tall trees. 7.The underground car park is full of newish and expensive automobiles. VII. 1.If you want to buy a new pair of boots, go to the shoe shop in the mall. Let me know if you need further assistance!