The correct option is A
Frost action is an example of physical weathering.
Physical weathering
Weathering denotes the process of wearing, breaking up, and fragmentation of the rock that creates the surface of the ground and that remains exposed to the weather. The geological process under which rocks break apart without losing their chemical composition is termed physical weathering. Physical or mechanical weathering processes are influenced by some applied forces.
The applied forces are Gravitational forces like shearing stress, load, and overburden pressure. Expansion forces due to crystal growth, animal activity or temperature variations.
What is frost action?
Frost action involves the weathering processes caused by recurred cycles of freezing and thawing. Frost action is thus distinguished from glacial action, which includes the processes related to moving ice. The mechanical weathering process caused by repeated cycles of freezing and thawing of water in pores, cracks, and other openings, usually at the surface. Frost action is limited to climates in which the temperature both drops below and rises above, 32°F (0°C) and can be described as occurring near the boundary of the cryosphere.
Frost action is an example of physical weathering.
Physical weathering
Weathering denotes the process of wearing, breaking up, and fragmentation of the rock that creates the surface of the ground and that remains exposed to the weather. The geological process under which rocks break apart without losing their chemical composition is termed physical weathering. Physical or mechanical weathering processes are influenced by some applied forces.
The applied forces are Gravitational forces like shearing stress, load, and overburden pressure. Expansion forces due to crystal growth, animal activity or temperature variations.
What is frost action?
Frost action involves the weathering processes caused by recurred cycles of freezing and thawing. Frost action is thus distinguished from glacial action, which includes the processes related to moving ice. The mechanical weathering process caused by repeated cycles of freezing and thawing of water in pores, cracks, and other openings, usually at the surface. Frost action is limited to climates in which the temperature both drops below and rises above, 32°F (0°C) and can be described as occurring near the boundary of the cryosphere.
