1. If teachers teach environmental issues at school, students will be more aware of protecting the environment.

. If light pollution happens, animals will change their behaviour patterns.

2. If the levels of radioactive pollution decrease, we will switch from nuclear power to renewable energy sources.

3. If the water temperature increases, some aquatic creatures will be unable to reproduces. 

4. If the water is contaminated, people will get more diseases.

5. If the land isn't polluted, the fammers will be able to grow crops
6. There won't be visual pollution if people don't built too many telephone poles and overhead power lines.
7. If people don't use contaminated water for cooking, their health will not be badly effects.
8. If we don't place dusbins in many places, people will throw rubbish everywhere.
9. If the industrial waste isn't well-treated, the factory won't install a new filtration system.

10.If he doesn't eat fast food and drink soft drink often, he won't put on
weight quickly.

1.If teachers teach environmental issues at school, students will be more aware of protecting the environment.

If light pollution happens, animals will change their behaviour patterns.

2.If the levels of radioactive pollution decrease, we will switch from nuclear power to renewable energy sources.

3.If the water temperature increases, some aquatic creatures will be unable to reproduces. 

4.If the water is contaminated, people will get more diseases.

5.If the land is polluted, the farmers will be unable to grow crops.

6.If people build too many telephone poles and overhead power lines. there will be visual pollution. 

7.If people use contaminated water for cooking, their health will be badly affected.

8.If we place dustbins in many places , people won't throw rubbish everywhere.

9.The industrial waste will be well-treated if the factory installs a new filtration system.

10.If he doesn't eat fast food and drink soft drink often, he won't put on weight quickly.