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Flashcards in Soil Deck (22)
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1

Soil is the product of ______

weathering

2

what is soil the product of...

weathering

3

What makes soil important?

it plays a role in ensuring bio-diversity, allowing plants to grow, and animals to live

4

Soil is composed of the end ______ of weathering

products

5

What are some examples of the products of weathering?

Sand, silt, and clay

6

Soil is composed of the sand, silt, clay and other products of weathering, but it also has _______ in its complex mixture.

humus

7

What is humus?

decaying organic matter

8

Are air and water in soil?

yes

9

What are factors of soil formation?

- Parent material
- Climate
- Organisms
- Topography
- Time
- Human activity

10

A soils parent material is which ______ are breaking down to form that soil

rocks

11

will soils in Florida be different than soils in Pa?

Yes

12

Soils are classified by...

their percentages of clay, sand, and silt

13

Any area that has soil will have different ______ within that soil

layers

14

Layers of soil are called...

soil horizons

15

Soil profiles consist of....

a sequence of soil horizons

16

What is the distinct characteristic of the O-Horizon?

is a mixture of organic matter

17

What is the distinct characteristic of the E-Horizon?

It is a light-colored layer marked by removal of soluble material

18

What is the distinct characteristic of the B-Horizon?

it is the maximum accumulation of clay minerals

19

What is the distinct characteristic of the C-Horizon?

It is the parent rock that has not been weathered yet

20

Is soil a renewable or non-renewable resource?

non-renewable

21

What are two soil conservation techniques?

Cover crops
contour plowing

22

Cover cropping is when you keep a plant in the soil year round to prevent _______ and erosion

weathering