Mars' Atmosphere Contains No Water Vapor.Why Is This

question 604

Multiple Choice

Mars' atmosphere contains no water vapor.Why is this?

• A) Mars' gravity is too weak to retain water vapor on the planet.
• B) The temperature of Mars is too high for water vapor to be retained on the planet.
• C) There has never been any liquid water on the surface of Mars.
• D) Mars was formed outside the region of the solar nebula where water vapor was stable.

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