Weathering

What type of weathering can only happen on exposed rock surfaces?

• Chemical

• Mechanical (Physical)

• Biological

Which type of weathering can alter a rock through vegetation growth and animal disturbance?

• Mechanical

• Biological

• Chemical

Which type of weathering changes a rock at the molecular level?

• Chemical

• Mechanical

• Biological

Which type of weathering results when abrasion occurs?

• Mechanical

• Chemical

• Biological

Which type of weathering results when oxidation (rusting) occurs?

• Biological

• Chemical

• Mechanical

Solubility is the measure of how a __________ dissolves within a ____________.

• solvent; soluble

• solute; solvent

• solvent; solute

• soluble; solvent

Which of the following mixtures are insoluble?

• sugar/water mixture

• pepper/water mixture

• salt/water mixture

• All of the above

Choose the BEST statement(s) below based upon the fact that temperature change affects rocks?

• Expansion of water within rock occurs during cooler temperatures.

• Expansion of water with a rock results when water freezes.

• Expansion of water within a rock occurs during warmer temperatures.

In order to increase the rate of solubility, which factor should also be increased?

• Temperature

• Pressure

• Water Content

• Time

A rock with a low melting point will ultimately have a higher _______.

• Mineral Content

• Water Content

• Temperature

• Solubility