Weathering and Soil

Question 1

Organic material provides nitrogen for plants. Which soil component contributes the most nitrogen to plants?

Revolt · Accepted Answer

humus

Question 2

Which is one property of silt soils?

Revolt · Accepted Answer

retains water

Question 3

What is one of the causes of mechanical weathering?

Revolt · Accepted Answer

animal actions

Question 4

Which describes a climate effect on the rate of weathering?

Revolt · Accepted Answer

Cold climates favor mechanical weathering.

Question 5

Which describes the horizons in a soil profile?

Revolt · Accepted Answer

Horizon O forms from organic material.

Question 6

Which factor contributes to both chemical and mechanical weathering?

Revolt · Accepted Answer

water

Question 7

Which is one factor that scientists use to classify orders of soil?

Revolt · Accepted Answer

climate

Question 8

Which soil would most likely be found in the Arctic?

Revolt · Accepted Answer

Gelisols

Question 9

Which correctly lists the three parts of soil that are classified by their particle size?

Revolt · Accepted Answer

sand, clay, and silt

Question 10

The map shows the Soils of America.

Revolt · Accepted Answer

weathered

Weathering and Soil Answers