Choose your answer from:
a). Solid bedrock.
b). rivers.
c). mines.
d). Drought.
e). Rain.
f). Evaporation.
g). coal.
h). storms.
Q: Fact 1: Sinkholes are formed by precipitation. Fact 2: Rain is also known as precipitation. Given the two facts above, what can cause sinkholes?
A:
e).