M2- Final Test Review

1. It is Lowest part of the soil which is the solid rock.

2. Biomass came from what kind of materials?

3. It is the thickest layer on Earth.

4. It is used to convert solar energy into heat energy and electrical energy.

5.What kind of hazard is moving and falling rock and soil from the mountain?

6. Water that collects on the surface of the Earth.

7. ________ energy sources are sources of energy that will not replenish quickly and may run out soon.

8. It is the basic unit of soil structure.

9. It is the boundary between the zone of aeration and zone of saturation.

10. It is the dropping of sediments carried by erosion agents when they slow down.