unit 4

2. the amount of water that can be absorbed
7. the solid, flexible outer layer of mantle, beneath the lithosphere
8. layer where charged gas molecules glow under intense solar radiation producing northern lights
11. outer layer of earth
12. soil type with equal parts silt, clay, and sand
14. type of tectonic plates that move away from eachother
15. this is characterized by cooler water, nutrient rich water colder winter temperatures in northwest and warmer in southeast

1. geologic material from which soil horizons form.
3. outermost layer made up of the crust and upper mantle
4. type of soil that drains water too quickly for roots and dries out
5. exposure to sun's rays
6. the large ocean circulation patterns due to global wind
9. process where earth is worn away by water, air, and other plants
10. this soil horizon is composed of mainly minerals with little to no organic matter
13. mixture of molten and semi-molten rock found beneath the surface of the Earth