It seems that the earth is the only planet that can support life as we know it. Which of these is a characteristic of the earth that allows it to support life?

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asked Aug 21, 2016 213k views

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Jool · Answer 1 · 2016-08-26T17:44:05+0000

Water on earth can exist in all 3 states: solid, liquid, and gas.
Earth is just the right distance from the sun so that temperatures are ideal for living organisms.
Earth has a protective atmosphere shielding the planet from harmful UV and X rays.

It seems that the earth is the only planet that can support life as we know it. Which of these is a characteristic of the earth that allows it to support life?

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