question number 17 of 20 - 8th grade science\...

question number 17 of 20 - 8th grade science\nphysical and chemical weathering processes are responsible for breaking down rocks. which of these is an example of chemical weathering by water?\nf water freezes in rock cracks and causes the rock to split.\ng limestone reacts with acid rain and dissolves.\nh moss collects and grows on the surface of rocks.\ni mineral crystals form as water evaporates from rocks.

Answer

# Brief Explanations: Chemical weathering involves a chemical change in the rock. In the case of limestone reacting with acid - rain, a chemical reaction occurs where the limestone (calcium carbonate) reacts with the acidic components in the rainwater, leading to its dissolution. Water freezing in rock cracks is physical weathering (expansion due to phase change). Moss growth is biological weathering. Mineral crystal formation from water evaporation is a physical process related to precipitation. # Answer: G. Limestone reacts with acid rain and dissolves.