Nature and Environment

Complete the sentence with the correct word.

1. Sea ___________ are hunted for their shells and meat.

Complete the sentence with the correct word.

2. Elephants are killed for their ivory ___________ .

Complete the sentence with the correct word.

3. A ___________ is a sea mollusc with ten arms that is typically able to change colours.

Complete the sentence with the correct word.

4. A young ___________ is called a calf.

Complete the sentence with the correct word.

5. The first small ___________ evolved from reptiles about 200 million years ago.

Complete the sentence with the correct word.

6. Today coastal waters are become very ___________ and whales and dolphins are killed in great number.

Complete the sentence with the correct word.

7. Forests produce ___________ .

Complete the sentence with the correct word.

8. Dinosaurs and trilobites are already ___________ .

Complete the sentence with the correct word.

9. Office paper, tyres and telephone books can be ___________.

Complete the sentence with the correct word.

10. ___________ is the study of the interaction of people with their environment.

Fill in the gaps with the right tenses of the verbs in brackets.

If we __________ (to keep) our environment clean, we _____________(to help) to stop pollution.

Fill in the gaps with the right tenses of the verbs in brackets.

You _____________(to save) trees if you ____________ (to recycle) paper.