Multiple Choice
The entire population of the United States (about 3.0 × 10⁸ people) each spend thirty seconds reading the latest astronomy news.In total,how many hours have people spent learning about the latest advance?
A) 2.5 million
B) 25 million
C) 250 million
D) 2.5 billion
Correct Answer:
Verified
Correct Answer:
Verified
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