71. What is the name of the process by which water is artificially added to underground aquifers to replenish depleted supplies?
a) Groundwater recharge
b) Aquifer storage and recovery
c) Desalination
d) Filtration
72. Which of the following is not a way in which water is used in households?
a) Drinking and cooking
b) Flushing toilets
c) Washing clothes and dishes
d) Irrigation of lawns and gardens
73. What is the name of the process by which water is returned to the surface of the Earth through the discharge of springs or wells?
a) Infiltration
b) Runoff
c) Recharge
d) Discharge
74. Which of the following is not a characteristic of a healthy ocean ecosystem?
a) High levels of biodiversity
b) Presence of coral reefs and kelp forests
c) Excessive amounts of plastic pollution
d) Maintenance of water quality and quantity
75. What is the name of the process by which water is pumped from underground sources for agricultural or municipal use?
a) Groundwater recharge
b) Aquifer storage and recovery
c) Groundwater withdrawal
d) Desalination
