Ответ:

1) 1. marsh

2. sea

3. river

4. stream

5. lake

2) 1. Man has created a lot for environmental problems

2. Schools visit zoos for educational reasons.

3. Pollution has had a harmful effect on the climate.

4. I'm interested in making a monthly donation.

5. An earthship is environmentally friendly.

3) 1. Recycled products are more environmentally friendly.

2. Air pollution is a big problem in cities.

3. Which method of payment do you prefer?

4. I'm afraid the heating system in my house is broken.

5. The survival nature depends on each and every one of us.

4) 1. B

2. D

3. C

4. A

5) 1. Habitat

2. Region

3. Store

4. Generate