5-1 MOY Lesson 3

The ______ of many ants is a mound of dirt.

Many zoos try to imitate a tiger’s natural ______ by planting trees and bushes in outdoor enclosures, or pens.

Plastic water bottles can be ______ into cloth for T-shirts.

Most environmentalists want people to reduce, reuse, and ______.

At a ______, oil is processed into heating fuel for your home.

Oil from the ground is black, but after processing it into gasoline at a ______, it is clear.

If people dump ______ into rivers, the water becomes harmful to people and animals.

A flood can cause ______ to overflow from sewers, or underground drains.

The Clean Air ______ became law in 1970.

When a bill becomes an ______, it is often the result of citizens who asked their representatives for change.