why is mars called a "red planet"? the presence of_______.
A. hydrogen in the atmosphere.
B. iron on its surface.
C. oxygen in the atmosphere.
D. rocks and metals in the core of the planet.
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why is mars called a "red planet"? the presence of_______.
A. hydrogen in the atmosphere.
B. iron on its surface.
C. oxygen in the atmosphere.
D. rocks and metals in the core of the planet.
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Answer:
letter B.
Explanation:
Mars is known as the Red Planet because iron minerals in the Martian soil oxidize, or rust, causing the soil and atmosphere to look red.