Which action describes chemical weathering?(1 point)

Question

Which action describes chemical weathering?(1 point)
Responses

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

water cutting downward to deepen a river channel
water cutting downward to deepen a river channel

water depositing beach sand

GPT-4o mini · Answer

The action that describes chemical weathering is **water carving out a limestone cave**. This process involves the chemical reaction between carbonic acid in water and the minerals in limestone, leading to the dissolution of the rock and the formation of features such as caves. The other options primarily describe physical weathering or erosion.

scott summers · Answer

Which of these is an agent of chemical weathering?(1 point) Responses iron oxide iron oxide copper patina copper patina acid rain acid rain iron

GPT-4o mini · Answer

The agent of chemical weathering among the options provided is **acid rain**. Acid rain can react with minerals in rocks, leading to their chemical alteration and breakdown. The other options, such as iron oxide and copper patina, are products of chemical weathering rather than agents. Iron itself is a metal and does not act as an agent of chemical weathering.