What triggered the formation of the sun?
A) supernova explosion
B) Big Bang explosion
C) radioactive decay of uranium
D) electromagnetic attractions
E) many comets colliding
Correct Answer:
Verified
Q1: What is the significance of the Tunguska
Q3: Approximately how old is the sun?
A) 14
Q4: Where is the asteroid belt located?
A) between
Q5: Approximately how old is the planet Earth?
A)
Q7: Which of the following describes a meteorite?
A)
Q9: Comets are distinguished from meteoroids and asteroids
Q10: Which of the following describes a comet?
A)
Q11: The Kuiper belt
A) is located in the
Q12: Tunguska-type events are thought to occur about
Q13: What were the two main components of
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