BJU 4 Science Chapter 9 - Weathering

Front

Decayed plant and animal material in soil is called ______.

Back

humus

Front

The layer of soil that contains humus is called ______.

Back

topsoil

Front

A moraine is a hill formed by a ______.

Back

glacier

Front

What occurs when water or wind gradually wears away rock by friction?

Back

abrasion

Front

The layer in which most plants grow is called ______.

Back

topsoil

Front

What is the process of breaking down rocks into smaller pieces called?

Back

weathering

Front

What is the solid rock layer beneath soil called?

Back

bedrock

Front

What is the term for the movement of soil and rock down a slope?

Back

landslide

Front

What is the term for the mixture of minerals, organic matter, water, and air that supports plant life?

Back

soil

Front

What is the process called when rocks are broken down by chemical reactions?

Back

chemical weathering