Match the words with the definitions.

Write the number of the definition near the word.

Richness [ ]

Beneficial [ ]

Machinery [ ]

Pest control [ ]

1. The control of the number of insects that are harmful or damages crops.

2. A group of large machines or the parts of a machine that make it work.

3. Helpful, useful, or good.

4. The quality of having a lot of something that is valuable or interesting.