One Light- Year Is the Distance Light Travels in One

question 70

Multiple Choice

One light- year is the distance light travels in one year. The speed of light is about 300,000 km/s (3 × 105 km/s) . How far is 1 light- year?

• A)18 million km (18,000,000, or 1.8 × 107 km)
• B)9)46 trillion km (9,460,000,000,000, or 9.46 × 1012 km)
• C)1)08 billion km (1,080,000,000, or 1.08 × 109 km)
• D)300 thousand km (300,000, or 3 × 105 km)

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Definitions:

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Drawing a conclusion about a certain characteristic of a population based on a sample from it.

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The provision of reasons or evidence to justify a claim or argument.