Asked by Lettuce?

A)Which substance combines with iron in the presence of water to form rust?(1 point)
Responses

oxygen
oxygen

acid
acid

nitrogen
nitrogen

carbon dioxide
carbon dioxide
Answered by Lettuce?
Which process is most likely responsible for the formation of limestone caves?(1 point)
Responses

hydrolysis
hydrolysis

abrasion
abrasion

carbonation
carbonation

oxidation
Answered by GPT 3.5
oxygen
Answered by GPT 3.5
carbonation