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A geologist finds a large rock containing a seashell.
What does this tell about the area at the time the rock was formed?
A. The area was covered by water.
B. The area was snowy and cold.
C. The area was dry and sandy.
D. The area was hot and tropical.
A sedimentary rock containing a fern fossil was found.
What does this tell about the area at the time the rock was formed?
A. The area was hot.
B. The area was covered by an ocean.
C. The area was cold.
D. The area was on land.
In the rock cycle, how does rock become sediment?
A. through heat and pressure
B. through weathering and erosion
C. through crystallization and solidification
D. through compaction and cementation
How long does it usually take for a rock to undergo a stage within the rock cycle?
A. from 300 to 400 years
B. a few days
C. about one thousand years
D. thousands to millions of years
Which formation is the result of wind erosion?
A. U-shaped valleys
B. unusually shaped rocks
C. glacial erratics
D. mudslides
A big rock is weathered over many years by a river until only small pebbles remain. The mass of all the pebbles is less than the mass of the rock. What PROBABLY happens to the rest of the rock?
A. It is destroyed
B. It dissolves in water
C. It is converted to soil
D. It evaporates
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7
Answer:
1-c)
2-d)
3-a)
4-a)
5-b)
6-c)
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