Which substance combines with iron in the presence of water to form rust?(1 point)
A. acid
B. nitrogen
C. carbon dioxide
D. oxygen
D. oxygen
C. carbonation
C. water reacting chemically with minerals in rock
D. a tropical region that is hot and humid all year long
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Which process is most likely responsible for the formation of limestone caves?(1 point)
Responses
A. abrasion
B. oxidation
C. carbonation
D. hydrolysis
Which option best describes hydrolysis?(1 point)
Responses
A. oxygen in water combining chemically with substances in rock
B. carbon dioxide reacting with water to form an acid that dissolves minerals in rock
C. water reacting chemically with minerals in rock
D. hydrogen in water combining chemically with substances in rock
Which type of region would be most likely to support chemical weathering?(1 point)
Responses
A. a polar region that is cold and dry all year long
B. a desert region with very little rain
C. a temperate region with warm summers and cold winters
D. a tropical region that is hot and humid all year long