Earth

What is water treated with to prevent bacteria from growing?

More Questions from Earth
What is the system consisting of the Earth's sun and the eight planets orbiting it called?
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The side of a sail furthest away from the wind is what?
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Who published the book "The Theory of the Earth" in 1795?
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What imaginary line divides the Earth's northern and southern hemispheres?
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What is a seven-letter word meaning "movement of weathered material from gravity"?
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Ruby and sapphire are gem forms of which mineral?
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A scientist that studies the Earth's surface is called what?
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What bodies of water cover almost 70% of the Earth?
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