c. evidence of pollution’s cooling the earth

78. The cause of cold weather in England from 1815 to 1818 was…..

a. decreased crop and livestock production b. volcanic ash in the atmosphere

c. pollution caused by the Industrial Revolution d. its proximity to the North Sea

79. No one realize the cause of the deterioration of the world agricultural commodity market because

a. there was a long delay between cause and effect b. the weather is beyond our comprehension

c. weather forecasts were inaccurate d. ecologists didn’t exist until modern times.

80. If, as some scientist predict , the world ends in ice, what might be the cause?

a. modern man’ s pollution of the air b. volcanic eruptions

c. obliteration of solar radiation d. all of the above.

ĐỀ SỐ…..07

Chọn phương án ( a hoặc b, c, d) ứng với từ có trọng âm chính nhấn vào âm tiết có vị trí khác với ba từ còn lại trong câu:

1. a. atmosphere b. oxygen c. release d. fertilize

2. a. contaminate b. garbage c. eruption d. Familiar

3. a. serious b. chemical c. influence d. occur

4. a. vapour b. contain c. Supply d. Disposal

5. a. concentration b. dangerous c. combination d. guarantee