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Nataly_w [17]
3 years ago
13

Scientists have found that Mars has water ice at its poles, even though volcanic activity has never been observed on Mars. Would

this prevent the inside-out model from becoming a theory?
A. Yes, because any comet that hit Earth also hit Mars.
B. Yes, because it shows that volcanic activity is necessary for a planet to have liquid water.
C. No, because no data from Mars is applicable to Earth.
D. No, because a single observation is not sufficient to discredit a theory.
Biology
1 answer:
Andrew [12]3 years ago
7 0

Answer:

c

Explanation:

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<h3>What is the structure of secondary?</h3>
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To learn more about the secondary structure of a protein, refer to:

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