Answered

Planet X is a terrestrial planet in our solar system. It has 21% oxygen in its atmosphere. Humans can walk on this planet without the aid of a space suit.
Based on the description, planet A is ___


earth
mars
mercury
venus

Answer :

metchelle
Based on the given description above, the planet that is being described would be planet EARTH. It is the only planet where humans can walk without the aid of a space suit, and the only planet that can provide humans the necessary oxygen to survive. Hope this answers that question.

Answer:

Earth

Explanation:

I tried earth and got it right

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