Earth and Space Science Ch 3 Weathering, Erosion, and Soil

Question 1

___ weathering occurs when rocks are broken down into smaller pieces by natural forces.

Accepted Answer

Mechanical

Question 2

The _ is the layer that contains nutrients and minerals from decaying plant and animal remains.

Accepted Answer

topsoil

Question 3

Fully developed soil has ___ layers.

Accepted Answer

4

Question 4

Give an example of chemical weathering and an example of mechanical weathering

Accepted Answer

chemical: oxidation; mechanical: wind blowing across rocks

Question 5

Rain, sleet, or snow that contains an abnormal amount of acid

Accepted Answer

acid precipitation

Question 6

___ occurs when oxygen from the air and water reacts with the iron in rocks

Accepted Answer

Oxidation

Question 7

Name 3 forces that cause erosion

Accepted Answer

water, ice, wind

Question 8

___ weathering occurs when a rock's minerals are changed into new substances.

Accepted Answer

Chemical

Question 9

Landslides are types of erosion caused by ___

Accepted Answer

gravity

Question 10

A mixture of weathered rock particles, minerals, and plant and animal remains

Accepted Answer

soil

Question 11

When water, ice, and wind move particles of rock and soil from one place to another

Accepted Answer

erosion

Question 12

A ___ is a mass of ice that covers a large area and moves slowly.

Accepted Answer

glacier

Question 13

When land goes from being fertile to being barren, like a desert

Accepted Answer

desertification

Question 14

When rocks are broken down into smaller pieces

Accepted Answer

weathering

Questions 14