1. The continuous ____________________ and cooling of rocks cause them to break.

Select one:

a.
breaking


b.
heating


c.
changing


d.
transforming

2. ____________________ is the breakdown of rock by oxygen and water, often giving iron-rich rocks a rusty-colored weathered surface.

Select one:

a.
Water


b.
Temperature


c.
Oxidation


d.
Solution

3. ____________________ is the breaking down of rocks by agents such as running water, wind, ice, changing temperature, people, plants and animals extreme heat and pressure.

Select one:

a.
changing


b.
weathering


c.
soiling


d.
breaking

4. ____________________ weathering occurs when rocks break down into smaller pieces due to physical forces, such as water and temperature, without changing the mineral compositions of the rocks.

Select one:

a.
biological


b.
chemical


c.
electrical


d.
mechanical

5. Hard as they are, ____________________ undergo changes all the time until they eventually breakdown into piece

Select one:

a.
sand


b.
rocks


c.
clay


d.
loam
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