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The only item that exists on the planet in all three states of matter at standard pressure is what

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4 votes
water is the only one because it exists as ice, water, and water vapor
User Mark Birbeck
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6 votes

Answer:

Water

Step-by-step explanation:

If we consider the planet to be Earth, it is water. It is the only item that exists in all three states of matter: Water (Liquid state), Ice (Solid state) and water vapor (Gaseous state) at standard pressure. No other elements/compound can exist in all three states at standard pressure. In fact, Earth is the only known planet to have this condition which makes it suitable for life.

User ArdentLearner
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