Unit 2 Review: Earth's Changing Surface

A hot wet climate causes weathering to take place ______________.

Soil that is rich in humus has high ___________ content.

What is the grinding action of rock on rock called?

Glaciers can only form when _______________.

 A ridge of till deposited by a glacier is known as a ________.

If you wanted to see a continental glacier, where would you go?

A _________ rock weathers easily because it contains many small, connected airspaces.

Most of the work of  mixing humus within the soil is done by _______.

What kind of weathering causes the mineral composition of rocks to change?

A landscape in which a layer of limestone erodes into caverns is called ____ topography

Ice wedging causes mechanical weathering of rock by means of ___________.

_____ are the organisms that breakdown the remains of other organisms.

A river flowing across a wide flood plain begins to form loop like bends called ________. 

Most beach sand comes from wave action and _______.

Soil formation begins with the weathering of _________.

A rock containing iron turns reddish brown because of exposure to ___________.

What term describes the management of soil to prevent its destruction?

The type of soil called loam is made up of _________.

A stream that runs into another stream is called a _________.

When earthworms add their wastes to the soil, they are contributing to the formation of ______.

Mass movement is caused by _________.

Marble is easily chemically weathered because of the ______ in acid rain.

The most important factors in determining the rate of weathering are rock type and ________.

Landslides, mudflows, slumps and creep are all examples of ________.

The growth of plant roots and animal activity may result in increased ________ weathering.

Living organisms in soil help to make humus and ______ the soil.

Deltas are built up by _________.

The process by which natural forces move weathered rock is called ______.