66. Which of the following is not a characteristic of a sustainable water system?
a) Efficient use of water resources
b) Adequate storage capacity
c) Use of non-renewable water sources
d) Maintenance of healthy ecosystems
67. What is the name of the process by which water is distributed to homes and businesses through a system of pipes and valves?
a) Irrigation
b) Drainage
c) Distribution
d) Conveyance
68. Which of the following is not a type of water treatment process?
a) Coagulation
b) Flocculation
c) Erosion
d) Sedimentation
69. What is the name of the process by which water is returned to the ground through the process of precipitation?
a) Infiltration
b) Runoff
c) Transpiration
d) Evapotranspiration
70. Which of the following is not a characteristic of a healthy wetland ecosystem?
a) High levels of biodiversity
b) Presence of migratory bird populations
c) Excessive nutrient runoff from agricultural activities
d) Maintenance of water quality and quantity
