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

Question

Responses

acid
acid

oxygen
oxygen

nitrogen
nitrogen

carbon dioxide

Answer 1

oxygen

Answer 2

Which process is most likely responsible for the formation of limestone caves?(1 point)
Responses

oxidation
oxidation

abrasion
abrasion

hydrolysis
hydrolysis

carbonation

Answer 3

carbonation

Answer 4

Which option best describes hydrolysis?(1 point)
Responses

water reacting chemically with minerals in rock
water reacting chemically with minerals in rock

carbon dioxide reacting with water to form an acid that dissolves minerals in rock
carbon dioxide reacting with water to form an acid that dissolves minerals in rock

hydrogen in water combining chemically with substances in rock
hydrogen in water combining chemically with substances in rock

oxygen in water combining chemically with substances in rock
oxygen in water combining chemically with substances in rock

Answer 5

water reacting chemically with minerals in rock

Answer 6

Which type of region would be most likely to support chemical weathering?(1 point)
Responses

a polar region that is cold and dry all year long
a polar region that is cold and dry all year long

a desert region with very little rain
a desert region with very little rain

a temperate region with warm summers and cold winters
a temperate region with warm summers and cold winters

a tropical region that is hot and humid all year long

Answer 7

a tropical region that is hot and humid all year long