Verbs describing change

1. Verbs and nouns.

Whenever you save energy, you reduce the demand for gasoline.

Here are more verbs that mean "to make more or less" or "to change in some way". Put the verbs into the correct category.

2. Word building.

How many of the verbs can you turn into nouns? Write them in the NOUN column. Don't forget to include the indefinite article a or an.