Question

Sink holes, stalactites and stalagmites are the landforms formed by _________________.

• A. river water
• B. ground water
• C. glaier
• D. wind

Answer 1

Answer: (B)

ground water

Sinkholes, stalactites, and stalagmites are the landforms formed by groundwater. Groundwater is a strong erosional force, as it dissolves away solid rock. The groundwater dissolves and carries away solid rock, gradually enlarging the cracks. Stalactites form as calcium carbonates that drip from the ceiling of the cave, whereas stalagmites form as calcium carbonate that drips from the ceiling to the floor of a cave. Sinkholes form as water percolates into the ground.