1.  mineral - material that forms in the earth from nonliving matter.

2.  fossil - the hardened parts or mark left by an organism that lived a long time ago.

3.  fuel - a material that can be burned to produce useful heat.

4. natural resource - a material that comes from the earth and can be used by living things.

5. ore - rock that has a large amount of useful materials.

C2L2

1.  decay - to slowly break down or rot.

2.  humus - decayed organisms in soil.

3.  nutrient - a material that plants and animals need to live and grow. 

4.  clay soil - soil with tiny grains that are packed closely together.

5.  loam - good planting soil that is a mixture of clay, silt, sand, and humus.

6.  sandy soil - loose soil with large grains.

C2L3

1.  recycle - to change something so it can be used again.

2.  landfill - a place where garbage is buried in soil.