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Unit 3: Our Dynamic Earth Flashcards | StudBud
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Unit 3: Our Dynamic Earth
Unit 3: Our Dynamic Earth
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1
________ waves spread out in all directions from the focus, the point where an earthquake begins.
transverse
seismic
2
Which best explains how the canyon may have formed?
A volcanic eruption formed the canyon.
The canyon was formed by animals and plants.
Erosion from flowing water formed the canyon.
Humans carved the canyon out of a mountain using small tools and shovels.
3
One way to prevent sand dunes from ______ is to build fences along the shore.
forming
eroding
4
Moving water is one cause of _____________________.
earthquakes
erosion
fault lines
fossils
5
An earthquake is usually caused by a ___________________.
movement along a fault
landslide
glacier
very large storm
6
According to the map, where do most earthquakes occur?
highest point in the country
continental plate boundries
7
Which statement is supported by the information in the diagram?
The fossil in layer A is the youngest.
The fossils in layers B and A are younger than the fossil in layer F.
The fossil in layer C is older than the fossil in layer F.
The fossil in layer C is older than the fossil in layer A.
8
If a fern fossil is found in a rock layer lower than a fossil of a small fish, the fern is probably _____.
older
younger
9
Scientists collected data on earthquakes for 4 years. What inference can be made from the data?
A moderate earthquake is NOT likely to happen in the United States.
A light earthquake can never happen in the United States.
A minor earthquake is likely to happen somewhere in the US every year.
A major earthquake is likely to happen somewhere in the US every year.
10
According to the map, where do most earthquakes occur?
edges of the ocean
center of the contients
11
How will the waves change the rocks in this picture?
The waves will press small rocks together and they will form larger rocks.
The waves will change the rocks into ocean water.
The waves will pound, smooth and break apart rocks.
The waves will wet the rocks, but not change their shapes.
12
Fossils are usually created from the _____ of an organism.
muscle
bones
hair
13
Which cannot be used to understand Earth's features?
observations
moon phases
patterns
maps
14
What structures can be used to help a building resist the lateral forces of an earthquake?
beam
shear wall
brick
bracing
