What do we call the visible part of the electromagnetic spectrum?

What do we call the visible part of the electromagnetic spectrum?

Correct Answer: light
electricity
weight
radio

Explanation: Earth is just a tiny speck in the universe. Our planet is surrounded by lots of space. Light travels across empty space. Astronomers can study light from stars to learn about the universe. Light is the visible part of the electromagnetic spectrum . Astronomers use the light that comes to us to gather information about the universe.

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