Tectonic Forces

__________ forces wear the Earth’s surface down, while tectonic forces build the Earth’s surface up.

• Gradational

• Tectonic

• Diastrophic

• Extrusive

What are the three processes in which diastrophism is involved?

• weathering, mass wasting, erosion

• oxidation, hydrolysis, carbonation

• broad warping, folding, faulting

• subduction, seafloor spreading, transform movement

The Sierra Nevada Mountains of California have risen as the result of

• faulting

• a rift valley

• a divergent boundary

• a transform boundary

The greater the movement, the greater the _________ of the earthquake

• magnitude

• damage

• diastrophism

• VEI

The difference in magnitude between a M2 and an M4 on the Richter scale is ____ times.

• 2

• 10

• 100

• 1000

As the tsunami waves near shore and enter shallower water _______ with the ocean floor causes the waves to _____ ____, producing a buildup of water that can reach 15 meters (50 ft) or more above sea level.

• friction; speed up

• gravitation; speed up

• friction; slow down

• gravitation; slow down

The volcanoes of Hawaii, for example, formed above a relatively stationary ___________ in the Earth’s interior.

• hot spot

• mid-ocean ridge

• subduction zone

• down thrust

Composed of solidified lava flows, _______ volcanoes are broad and gently sloping.

• shield

• super

• composite

• strato

The city of Pompeii, Italy, was partially buried under about 5 meters of __________ as a result of the eruption of Mt. Vesuvius in A.D. 79.

• ash and pumice

• lava

• mud

• sedimentary rock

Mt. St. Helens is this kind of volcano.

• strato

• super

• shield

• cinder cone