-In the diagram,what is the diameter of Mercury?
A) about 240 kilometres
B) about 2400 kilometres
C) about 24,000 kilometres
D) about 2.4×10⁶ kilometres
Correct Answer:
Verified
Q3: Which of the following has the distances
Q4: What does a typical galaxy like our
Q5: What is the ratio of the diameter
Q6: How long ago did the Big Bang
Q7: What is another way to say 2.9×10⁷?
A)29
Q9: If the distance to the nearest star
Q10: It takes light 1.3 seconds to travel
Q11: How many stars are in the Milky
Q12: The Earth has a radius of about
Q13: Why is scientific notation used in astronomy?
A)It
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