According to the author, the main problem of our environment today is ______.
A: the increase of population
B: the limited energy resources
C: the more serious air pollution
D: the development of technology
A: the increase of population
B: the limited energy resources
C: the more serious air pollution
D: the development of technology
举一反三
- Environment, resources and () are the three major problems facing<br/>human society today? A: substances B: population C: pollution
- According to Alex, as students, the best we can do is to _______. A: call on more students to save energy in our daily life B: ignore the air pollution reports and believe that the blue sky will come back C: advocate people to pay more attention to air pollution D: devote ourselves to further research in the environmental studies
- Now the air pollution in this city ______ more and more serious with each passing day.
- It is generally believed that the (increase) __________ air pollution has caused serious problems such as global warming.
- The main cause of pollution is ______. A: the release of artificial or natural substances into the environment B: the production of new industrial goods C: increased amounts of a natural substance D: our ever-increasing population