In your own words, explain why sinkholes are very common in florida. list one use of sinkholes in florida.

Beneath Florida are structures made up mostly with carbonaceous rock such as limestone and dolostone overlaid with mixtures of sand and clay. When groundwater passes through this structure, the carbonates are slowly dissolved and thus creating sinkholes.

For centuries, sinkholes have found popular use as disposal sites for various forms of waste.

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the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks