Final answer:
Groundwater shortages can be caused by pollution, excessive use, and lack of precipitation.
Step-by-step explanation:
Groundwater shortages can occur due to various factors, including pollution, use exceeding the rate of replenishment, and lack of precipitation. Pollution can contaminate groundwater sources, making them unsuitable for human consumption. When the use of groundwater exceeds its natural replenishment rate, it can lead to depletion and shortages. Additionally, if an area experiences a prolonged period of inadequate precipitation, it can result in lowered groundwater levels and scarcity.
Learn more about Causes of groundwater shortages