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Kay [80]
3 years ago
7

Planet X is a terrestrial planet in our solar system. It has 21% oxygen in its atmosphere. Humans can walk on this planet withou

t the aid of a space suit. Based on the description, planet X is____ .
a.Earth
b.Mars.
c.Mercury
d.Venus
Biology
1 answer:
Maurinko [17]3 years ago
6 0

Answer: the answer is actually earth

Explanation: A

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