The image below shows stalactites on the ceiling of a cave in Texas. Rainwater dissolves calcium carbonate from the limestone in the soil. The water with dissolved calcium carbonate soaks into the
ground towards the caves. Some of the water drips to the floor when it reaches the cave and collects
in a pool. When the water does not drip, it evaporates leaving the calcium carbonate that form the
stalactites.
Which event in the formation of stalactites is an example of weathering?
A. Some of the water collects in a pool on the floor of the cave.
B. The water with dissolved calcium carbonate soaks into the ground towards the
caves.
C. Some of the water evaporates leaving the calcium carbonate.
D. Rainwater dissolves calcium carbonate from the limestone in the soil.