Earth Science Geology, the Environment, and the Universe

Section 1: Early Earth

Self-Check Quizzes-English

1
The oldest rocks on Earth are __________.
A)3.5 billion years old
B)3.96 to 3.8 billion years old
C)1.6 to 1.8 million years old
D)1 to 2 billion years old
2
How were asteroids and meteorites a heat source for Precambrian Earth?
A)Their impact on Earth generated energy.
B)Their bombardment of Earth caused them to sink to the core.
C)Their gravitational contraction generated energy.
D)Their radioactive decay of isotopes generated energy.
3
The age of which evidence supports the hypothesis that Earth is 4.6 billion years old?
A)the oldest fossils
B)zircon grains in Precambrian rocks
C)impact craters on Earth
D)thickest layers of sedimentary rocks
4
What is a result of the radioactive decay that occurred during Earth's early history?
A)raised the temperature of Earth's interior
B)kept life forms from evolving
C)made the atmosphere radioactive
D)slowed the rotation around the axis
5
Asteroid impacts result in the covering of Earth's surface by a blanket of sediment. What long lasting effect did this have on the early Earth's environment?
A)dammed up rivers and caused flooding
B)prevented plants from growing
C)stopped heat from escaping to space
D)caused earthquakes and volcanic eruptions
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