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Study Of The Sun - Questions and Answers

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16. Central core of the Sun is called
A. photosphere
B. ionosphere
C. chromospheres
D. corona
Explanation:
17. Which of the following is NOT important type of stars
A. double and multiple stars
B. intrinsically variable star
C. shooting stars
D. novae and supernovae
Explanation:
18. Sunspots
A. occur at random
B. vary from maximum to zero
C. vary from minimum to maximum
D. occur in fixed number
Explanation:
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