Multiple Choice
The total time the Sun will spend converting hydrogen to helium in its core is:
A) about 4.5 million years.
B) about 1 million years.
C) at least 200 billion years (2 × 10¹¹ years) .
D) about 10 billion years (10¹⁰ years) .
Correct Answer:
Verified
Correct Answer:
Verified
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