`1` If we don't conserve water, we will face serious water shortages

`->` Cấu trúc câu đk loại `1` : If + mệnh đề thì HTĐ , will + V-inf

`2` Because of the awful weather, we didn't enjoy our camping holiday

`->` Cấu trúc : Because of + Danh từ/Đại từ/V-ing/cụm danh từ

`3` Since plastic bags are non-biodegradable, they will remain in the environment for many years

`->` S + tobe + N/adj

`->` S + will + V-inf

`4` If Paul thought about the planet, he wouldn't waste so much water

`->` Cấu trúc : If + mệnh đề thì QKĐ , would + V-inf

`5` Water pollution leads to the death of many aquatic animals such as fish

`->` lead to N : dẫn đến cái gì

đừng báo cáo câu trả lời của mình nha, nếu cậu chưa hiểu ở đâu có thể bình luận để mình giải thích

1. We must conserve water. Otherwise we will face serious water shortages. (IF) 

=> If we don't conserve water, we will face serious water shortages.

2. We didn’t enjoy our camping holiday BECAUSE OF  The awful weather.

3. They will remain in the environment for many years Since Plastic bags are non-biodegradable.

4. if Paul  thinks about the planet, He will waste so much water.

5. Water pollution happens lead to Many aquatic animals such as fish can die.