Ch. 14 Holt Earth Science: Weathering

Which of the following is NOT an agent of erosion?

A type of mechanical weathering that occurs in cold climates; it can split huge boulders

Oxidation is a form of chemical weathering where minerals in the rock combine with _.

Snow  that weathers buildings in a city is an example of _.

The horizontal layer of soil that contains living organisms

Plant and animal activities cause what kind of weathering?

In what climates is the weathering rate fastest?

Materials of Earth’s surface are dissolved, or worn away and transported by natural agents

Some rocks weather faster than others. Why?

Farmers plant crops in alternating stripes  

Which of these is a form of mechanical weathering?

A horizontal layer of soil that is clearly different from the layers above and below it

Slow, down-slope movement of saturated soil in arctic areas at high elevations

Which of the following is NOT an agent of mechanical weathering? 

Abrasion is caused by all of the following agents EXCEPT _.

Which of the following is NOT a common agent of  erosion?

Climates that have the fastest rate of weathering:

Hydrolysis is chemical weathering caused when something in the rock reacts with this:

High mountains and steep slopes are especially vulnerable to this type of weathering

Humans can affect the amount of weathering

Which of the following is NOT a farming method that conserves topsoil?

Crops are planted in a way that curves to follow the shape of the land

The physical process by which rocks break down without changing their composition

You can tell if a mountain is older or younger by looking at it

Mechanical weathering can also be called __ weathering

The weathering process in which elements react with oxygen

The part of a rock exposed to air, water, and other weathering agents

Farmers create giant steps on a hillside to conserve soil

How does the amount of a rock’s surface area affect weathering?

Ice wedging damages rocks because the water freezes and _

Lichens and mosses produce weathering agents called _.

What can keep the soil in place to avoid a mudslide?

The sliding of a large area of sediment or of land down a slope, caused partly by gravity

Which of the following is NOT a process of chemical weathering?

All of the following are layers of mature soils EXCEPT _.

The formation of new substances when water reacts chemically with another substance 

A large, whole rock will weather faster than a bunch of smaller rocks that have cracks

Carbonation is chemical weathering caused by carbonic acid, which comes from what?

Topsoil is where the crops grow, so it's important.

Wearing and grinding away rock

The process in which elements react with carbon, and change into a carbonate 

Softer, less weather-resistant rocks wear away faster than harder, more weather resistant rocks