1. Condensation of water on the Earth's surface because of atmospheric cooling?

2. Solar radiation received by the Earth's atmosphere or surface that has been modified by atmospheric scattering?

3. Chemical process where a compound or molecule breaks up into simpler constituents?

4. Number of different species in a given region?

5. Geometric pattern that a stream's channels take in the landscape?

6. Form of metamorphism that causes only the structural alteration of rock through pressure?

7. A hill shaped deposit of till?

8. Breakdown of organic matter?

9. The erosion or removal of vegetation cover from an area?

10. DNA?