Which action describes chemical weathering?(1 point) Responses water cutting downward to deepen a river channel water cutting downward to deepen a river channel water depositing beach sand water depositing beach sand water carving out a limestone cave water carving out a limestone cave water freezing and thawing to widen cracks in rock
water freezing and thawing to widen cracks in rock
The action that describes chemical weathering is water carving out a limestone cave.
The action that describes chemical weathering is water depositing beach sand.
To arrive at this answer, we need to understand what chemical weathering is. Chemical weathering is the process by which rocks and minerals break down and change their composition as a result of chemical reactions. It involves the interaction between minerals in rocks and certain substances present in their environment, such as water or acids.
In the given options, water cutting downward to deepen a river channel, water carving out a limestone cave, and water freezing and thawing to widen cracks in rock all describe physical or mechanical weathering, not chemical weathering.
However, water depositing beach sand involves the interaction of water with minerals in the sand, causing some chemical changes over time. As water flows, it can dissolve and transport minerals from one location to another, depositing them as sand on beaches. This process is a form of chemical weathering in which the composition of the sand is altered through the action of water.
Therefore, the correct answer is "water depositing beach sand" as the action that describes chemical weathering.