Earth Science Chapter 2 Lesson 5

All the living and nonliving things in an area make up an environment

Harmful or unwanted material that has been added to the environment

Some of the gases combine with water droplets in the air.

means using resources wisely

It is a mix of desd and decaying metter

Make smaller or less in amount, degree or size. To use less of something

It is the action of using something again

It is mean to make a new product from old materials

Rubbish such as paper , cans and bottles left lying in an open or public place

It is process when farmers plow fields in carved rows that follow the shape of the land

It is process when farmers change crops every year

Water that has been used

It is a system of pipes