Answer the following questions 1. why have many species of birds and animals disappeared? 2. what is the air polluted by : 3. are rivers polluted? 4. why are forests disappearing all over the world? 5. can you see pollution at the seaside? 6. people are in danger, arent they? 7. what are the most serious environmental problem now ? 8. did you learn anything from the text ? what?
2. It becomes dirty due to emissions into the environment
3. Yes, of course
4. because they cut down people
5. Yes, but not always
6. Yes, and this must be addressed
7. environmental pollution
8.Yes of course, I have learned that you need to protect the environment