ASTRONOMY 1010 FINAL EXAM
QUESTIONS WITH ANSWERS.
1. Which of the following planets has the least substantial
atmosphere? - correct answer -Mercury
2. What is Jupiter's Great Red Spot? - correct answer -A long-
lived, high-pressure storm twice the size of Earth.
3. The average temperature of the Earth has increased by how
much over the past 50yrs - correct answer -0.5 degrees C
4. Which moon has a thick atmosphere? - correct answer -Titan
5. Planet IX is - correct answer -the 9th planet astronomers have
inferred from the orbits of the minor planets in the Kuiper belt.
6. Rank the five terrestrial worlds in order of size from smallest to
largest - correct answer -Moon
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7. Mercury
8. Mars
9. Venus
10. Earth
11. Why don't terrestrial planet have Hydrogen gas in their
atmosphere? - correct answer -the escape velocity is lower
than the average velocity of the hydrogen
12. What would happen to earth's temperature if Earth were
more reflective - correct answer -It would go down
13. Which of the following is not evidence supporting the giant
impact theory for the formation of the Moon? - correct answer -
Scientists have found several meteorites that appear to be the
remains of the object that caused the giant impact.
14. Jupiter does not have a large metallic core like the Earth.
How can it have a strong magnetic field? - correct answer -It
has metallic hydrogen inside.
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15. If Earth didn't have an atmosphere, what would happen to its
temperature? - correct answer -It would go down a lot (more
than 10°C).
16. The correlation between the increase in CO2 and the
increase in temperature throughout Earth's history proves that
increasing CO2 causes the increase in temperature. - correct
answer -False
17. Saturn is the only planet in the solar system with rings. -
correct answer -False
18. The weather on Mars is much different today than in the
distant past. - correct answer -True
19. Carbon is removed from Earth's biosphere by subduction. -
correct answer -True
20. Jupiter and Saturn have metallic hydrogen layer - correct
answer -True