Astronomy Quiz Questions and Answers

21. What is the approximate age of the earth?
  A.  3.64 billion years
  B.  4.04 billion years
  C.  4.54 billion years
  D.  5.15 billion years
Answer
Ans: C
4.54 billion years
22. What is the correct alignment during a total lunar eclipse?
  A.  Earth, sun, moon
  B.  Sun,earth,moon
  C.  Sun,moon,earth
  D.  None of the above
Answer
Ans: B
Sun,earth,moon
23. Which of the following planets is called "Blue Planet"?
  A.  Uranus
  B.  Venus
  C.  Earth
  D.  Mercury
Answer
Ans: C
Earth
24. Which of the following is the nearest star to the solar system?
  A.  Eta Centauri
  B.  Atlair
  C.  Proxima Centauri
  D.  Alpha Centauri
Answer
Ans: C
Proxima Centauri
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