III. Choose the best answer a, b, c or d to complete the sentence. 1. Air pollution has many effects the environment and living organisms. A. in B. of C. for D. on 2. The volcano has erupted approximately once every ten years 1970. A. since B. in C. from D. for 3. After a severe storm, there is often along the shore that will need to be removed. A. waste B. debris C. lava D. junk 4. In the 1980s, acid rain widespread damage to forests in the areas. A. made of B. resulted in C. led for D. caused by 5. plastic takes so long to break down, it pollutes the land and water. A. Even though B. While C. Since D. Because of 6. If I had the chance to take part in an International summer camp, I very excited. A. am B. was C. will be D. would be 7. do earthquakes usually last? - Less than one minute. A. How strong B. How longC. How often D. How far 8. Niagara Falls is a great natural on the border of the USA and Canada. A. castle B. loch C. spectacle D. Symbol 9. The 2010 Haiti earthquake was the most natural disaster in the history of this country. A. destructive B. permanent C. unique D. awesome 10. “A hurricane is heading toward our home town.” - “ ” A. That’s a relied. B. How interesting! C. Glad to hear. D. Oh my God!