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Sati [7]
3 years ago
13

A rock containing iron has been chemically weathered by if it becomes soft and crumbly and reddish brown in color.

Geography
1 answer:
lana66690 [7]3 years ago
5 0

Answer:

c. oxygen

Explanation:

Rusting occurs when iron reacts with oxygen in the presence of water. Rusting is an oxidation reaction and is characterized by a reddish brown color.

Hope that helps. :)

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