1-C:  If the Earth gets warmer, the sea level will rise.

2-E: Things will change for the better if we take action immediately

3-D: If people fly less, carbon emmissions will be reduced

4-A: Air pollution will become worse in the city if we have more cars

5-F: We will regret it in the future if we use too much energy now

6-B: There will be less water pollution if the factory treats its waste well.

Chúc em học tốt!