Match the words to the correct definition: a or b.

1. Alternative energy is ..
a) a form of energy that causes pollution.
b) a new form of energy that doesn't use fossil fuels.

2. If you're doing conservation work ...
a) you're trying to build something
b) you're trying to save something.

3. People who live a green lifestyle ...
a) are trying to protect the planet
b) are vegetarian.

4. An animal's habitat ...
a) is the place where it lives
b) is the type of animal that it is.

5. If you grow organic vegetables, ...
a) you don't use chemicals on them.
b) you only sell them to local people.