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Answer:
Stalactites
Explanation:
A tapering structure hanging like an icicle from the roof of a cave, formed of calcium salts deposited by dripping water.
A stalactite is an icicle-shaped formation that hangs from the ceiling of a cave and is produced by precipitation of minerals from water dripping through the cave ceiling. ... A stalagmite is an upward-growing mound of mineral deposits that have precipitated from water dripping onto the floor of a cave.