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Questions and Answers

What is the speed of light in a vacuum?

1,000,000,000 meters per second

500,000,000 meters per second

299,792,458 meters per second (correct)

100,000,000 meters per second

Which color of light has the shortest wavelength?

Red

Violet (correct)

Green

Yellow

What is the primary source of natural light on Earth?

Bioluminescent organisms

Stars

The Sun (correct)

The Moon

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Questions and Answers

What is the speed of light in a vacuum?

Which color of light has the shortest wavelength?

What is the primary source of natural light on Earth?

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