The Planet Neptune Is, on Average, About 4

question 99

Multiple Choice

The planet Neptune is, on average, about 4.5 billion km from the sun. How long does it take light from the sun to reach Neptune? (Recall that the speed of light is about 300,000 km/s)

• A)about 4 days
• B)about 4 minutes
• C)about 4 seconds
• D)about 4 hours

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