Answer:
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground.
Explanation:
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground.
Answer:
Away from the ridge, where the sea floor is older and has more time to accumulate; also much thickest near continents
Explanation: