11457699
Description
Quiz by PEDRO ÁLVAREZ JIMÉNEZ, updated more than 1 year ago
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Created by PEDRO ÁLVAREZ JIMÉNEZ
over 6 years ago
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Question 1
Question
What do we call planets that can support life as we know it?
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Answer
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Super-Earths
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Habitable worlds
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Home planets
Question 2
Question
Water is very common in the universe, but, according to Anbar, what necessary-to-life condition are scientists searching for on other planets?
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Answer
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Water that contains an abundance of sodium ions
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Water in its liquid state (notice or vapor)
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Water that remains a constant temperature (with minimal variation)
Question 3
Answer
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All water on Mars would turn into vapor because Mars is too close to the Sun resulting in surface temperatures that exceed water's boiling point
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There is no water on Mars in any form
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Because Mars is small, it has less gravity and has lost its water to space
Question 4
Question
Why do planets need to have an atmosphere in order for liquid water to exist?
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Answer
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Planets without an atmosphere are in a vacuum, and liquid water is unstable in a vacuum (it boils away or freezes)
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There is no such thing as a planet without an atmosphere
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Water enters another state of matter (called hydrogrix) when present on planets without an atmosphere
Question 5
Answer
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It's atmosphere is nearly 100% carbon dioxide causing surface temperatures hot enough to melt lead (too hot for liquid water)
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It lacks an atmosphere causing a vacuum-like environment in which no life is thought to be able to survive
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Temperature varies so greatly between boiling hot and freezing cold, it's believed that no life forms could survive there
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