Nature

1. An earthquake is an example of a natural _____ .

• change

• disaster

• environment

• desert

2. Because of ____ , there is smog in big cities.

• flood

• weather

• pollution

• sun

3. What’s the weather _____ for tomorrow?

• forecast

• predict

• proposition

• like

4. This valley is situated ____ sea level.

• next

• behind

• below

• over

5. People are looking for different ____ of energy.

• type

• sources

• waste

• mind

6. You should always pick ____ litter after yourself.

• up

• on

• under

• over

7. We must care _____ the environment.

• away

• at

• of

• about

8. Pollution is present _____ the air we breathe.

• on

• at

• in

• of

9. What does the air consist _____?

• to

• of

• on

• at

10. When walking your dog, keep it ____ a leash.

• on

• calm

• slow

• up