Cambridge English - P4 - Week 2
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How fast is the speed of light?
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300,000 km/second
How many times wider is the Earth in comparison with the moon?
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The moon’s diameter is 3,476 km, the
Earth’s is 12,742 km. Earth is roughly
four times wider than the moon.
Approximately how much does a NASA spacesuit cost in US dollars?
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$12 m
What is the diameter of the largest asteroid ever discovered?
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965 km
In which year will the orbit of Halley's Comet next bring it past the Earth?
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2061
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