Exam 3

Question 1

Frostwedging

Answer 1

Mechanical Weathering- Water gets into cracks in rocks & freezing enlarges the cracks

Question 2

Salt Crystal Growth Process:

Answer 2

1. sea spray to salty groundwater gets in rock cracks
2. salt crystals form and when water evaporates it enlarges the cracks
3. rocks eventually crack

Question 3

Sheeting Process:

Answer 3

Pluton (intrusive igneous rock landforms) exposed after erosion removes younger rock that covered it
Rock slabs break due to release of confining pressure (weight of material above causing pressure from all sides)
Exfoliation dome forms after enough time passes *associated with pluton and weight of material pushing down on it
*Example: Half dome in Yosemite

Question 4

bio activity with mechanical

Answer 4

plant roots

Question 5

Karst Topography

Answer 5

-calcium carbonate and underground dissolving

Question 6

Weathering

Answer 6

physical breakdown &/or chemical alteration of rock at or near Earth’s surface

Question 7

Erosion

Answer 7

removal & transport of weathered rock by water, wind, or ice

Question 8

Differences between weathering and erosion:

Answer 8

Weathering breaks down rocks and minerals in place, while erosion transports the broken-down materials away from their original location.

Question 9

Mechanical Weathering

Answer 9

Physical forces breaking rocks into smaller pieces

Question 10

Chemical Weathering

Answer 10

Chemical transportation of rocks into one or more new compounds