Sem II Earth Sci Final Exam Rev (23)- Surface Processes

Which is a cause of weathering?

• Water

• Waves

• Wind

• Gravity

• All of the above

What is the difference between mechanical weathering and chemical weathering?

• Mechanical weathering is breaking down of rocks

• Mechanical weathering is the change in chemical composition

• Chemical weathering has a change in the rock's chemical composition and mechanical doesn't

• Chemical weathering is breaking down of rocks

Which is not an example of mechanical (physical) weathering?

• Frost wedging (freeze thaw)

• Organic Acids

• Abrasion

• Plants and animals

What type of weathering is the breakdown of rock because minerals are changed to different substances (change in composition)?

• Abrasion

• Physical weathering

• Chemical weathering

• Freeze thaw

Oxidation is a type of chemical weathering that forms _________

• Water

• Plants

• Rust

• Ice

Weathering rates are faster in ________________ climates.

• Warm and dry

• Dry and Cold

• Warm and wet

• Dry and wet

The two main factors that determine the rate of weathering are the TYPE of rock and_____.

• Music
• Climate
• Size of rock
• Weight of rock

The map below represents a river as it enters a lake.  At which location is the amount of deposition greater than the amount of erosion?

• A

• D

• E

• F

The image above depicts the effects of chemical weathering breaking down limestone. Which type of chemical weathering causes this reaction?

• Acid rain

• Oxidation

• Exfoliation

• Abrasion

The tallest sand dunes in North America are found in Great Sand Dunes National Park and Preserve in Colorado. These dunes were formed from the sand at the bottom of a dry lake bed. Which of the following agents is most likely responsible for the formation of the sand dunes?

• Wind

• Water

• Ice

• Gravity