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GEOLOGY 101 EXAM 1 (HUDSON - BYU)
NEWEST 2025 ACTUAL EXAM COMPLETE 100
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY
**Question:** In the heliocentric model __.
- Earth orbits around the Sun
- the Sun orbits around Earth
- Earth is a stationary planet
- Mercury and Venus orbit around the Sun, but all other
planets orbit around Earth
**ANSWER:** **A. Earth orbits around the Sun**
**Question:** Among the choices below, the best estimate of
the age of the Universe is __ years old.
- 5 million
- 6 billion
- 14 billion
- 100 billion
**ANSWER:** **C. 14 billion**
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**Question:** The big bang theory states that __.
- all stars will end their lives explosively as supernovas
- Earth formed through a series of violent collisions
- meteors were responsible for the extinction of the dinosaurs
- all matter in the Universe was once confined to a single point
**ANSWER:** **D. all matter in the Universe was once
confined to a single point**
**Question:** Strong evidence that the Universe is expanding
comes from the fact that the light emitted from distant galaxies appears to be __.
- red-shifted
- blue-shifted
- green-shifted
- none of the above
**ANSWER:** **A. red-shifted**
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**Question:** Aside from Earth, the terrestrial planets are __.
- Mars, Mercury, and Venus
- Mars, Venus, and Jupiter
- Jupiter, Saturn, Uranus, and Neptune
- Mars and Saturn
**ANSWER:** **A. Mars, Mercury, and Venus**
**Question:** The gas-giant, or Jovian, planets are __.
- Mars, Mercury, and Venus
- Mars, Venus, and Jupiter
- Jupiter, Saturn, Uranus, and Neptune
- Mars and Saturn
**ANSWER:** **C. Jupiter, Saturn, Uranus, and Neptune**
**Question:** The branch of science that studies the structure
and history of the Universe is __.
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- cosmetology
- scientology
- cosmology
- universalism
**ANSWER:** **C. cosmology**
**Question:** All objects in the Solar System are in orbit
around __.
- Earth
- Jupiter
- the Sun
- the Kuiper Belt
**ANSWER:** **C. the Sun**
**Question:** Our Sun belongs to a galaxy known as __.
- Andromeda
- Cepheus
- the Milky Way