Answer:
It happens because the consuming is higher than the water drop rate, or even because there are too many people in a zone where there is not enough fresh water.
Absolutely random question, but I would use a large hammer and smash my rock to piece. :/
is it oceans or the actual continent/country
The sea erodes rocks with hydraulic action and abrasion. More and more erosion occurs making the rock more steeper until it forms a cliff.
