Question

Coastal areas are susceptible to saltwater intrusion into groundwater. Saltwater intrusion usually becomes a threat when:

a) serious storms hit the coast
b) local water users remove more groundwater than is naturally replaced
c) petroleum wells bring saline brines to the surface
d) coastal erosion allows ocean water to get near freshwater aquifers
e) heavy recreational activity occurs on beaches

Answer 1

Answer: B. local water users remove more groundwater than is naturally replaced

Explanation: Coastal areas are susceptible to saltwater intrusion into groundwater. Saltwater intrusion usually becomes a threat when local water users remove more groundwater than is naturally replaced.