2. underline the correct word. 1. zoos play an important role/ cycle in animal conservation. 2. cars burn/ emit petrol. 3. animals should live in their natural ecology/ habitat. 4. acid rain causes/ poisons trees and plant. 5. he made off/up the whole story.

1. Zoos play an important role in animal conservation.
2. Cars burn petrol.
3. Animals should live in their natural habitat.
4. Acid rain poisons trees and plant.
5. He made up the whole story.

1 role
2 burn
3 habitat
4 poisons
5 made up