Iron-containing minerals in rocks may combine with water and air to create rust. This is an example of A. chemical weathering
B. mechanical weathering
C. abrasion
D. exfoliation

A

Explanation:

chemical reaction are those type of reaction that are irreversible and a new substance is being formed therefore when the iron combine with water and air it leads to rusting.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.