Examlex
Which of the compounds below has bonds with the least covalent character?
Cave Collapses
The sudden failure or falling in of a cave roof or walls, often resulting in a sinkhole or depression at the surface.
Groundwater
Water that is found beneath the earth's surface, filling the spaces between rocks and forming aquifers.
Acidic Waters
Water with a pH less than 7, often resulting from natural processes such as volcanic emissions or anthropogenic sources like pollution.
Limestone
A sedimentary rock composed mainly of calcium carbonate (CaCO3), often formed from the remains of marine organisms and used extensively in building and industry.
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