
Plants get carbon for growth from the

What is the definition of soil?
What is the difference between mechanical and chemical erosion?
How does soil form?

List two minerals found in soil.
List two living organisms that would be found in healthy soil.
What is porosity, and how does it impact water movement?

Place the following in order of size, with the first being the smallest. (This may require some googling)
bacteria
baby earthworm
silt particle
clay particle
sand particle
mold spore
What would be the perfect soil mixture, and why?
What is cation exchange capability, and how do clay particles and organic material impact it?
What is compaction? How does it occur, and why does it cause problems for plants?
Explain what salinization is, and why it occurs. In your answer please explain why watering with groundwater has a different effect on the soil than rainwater.
Is soil renewable or nonrenewable? Explain why or why not.

Match the part of soil to the "sphere" to which it belongs.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
rocks/minerals | arrow_right_alt | hydrosphere |
oxygen | arrow_right_alt | lithosphere |
bacteria, fungi | arrow_right_alt | atmosphere |
water | arrow_right_alt | biosphere |

Plants get nitrogen from the
The most important thing plants need is energy, which they get from the
Examples of erosion of rock include (select all that apply)