Multiple Choice
What would have happened to Earth if the Sun had been significantly larger than it is?
A) Our Sun would have burned out after a few hundred million years so life would not evolve.
B) Liquid water and the water cycle would not exist.
C) Our atmosphere would consist mainly of carbon dioxide.
D) Our atmosphere would consist mainly of nitrogen.
Correct Answer:

Verified
Correct Answer:
Verified
Q19: Examine the words and/or phrases below and
Q20: Sea level is constant over long periods
Q21: Primitive organisms, called _ nuclei.<br>A) stromatolites<br>B) eukaryotes<br>C)
Q22: Earth's most important internal heat source is/are_
Q23: A major economic deposit associated with the
Q25: During the Cenozoic era, the eastern and
Q26: The major source of oxygen in Earth's
Q27: Why is it so difficult to interpret
Q28: The atmosphere of_ is composed primarily of
Q29: Why is the molten metallic outer core