96. What is the name of the process by which water is transported through the Earth’s atmosphere in the form of clouds?
a) Precipitation
b) Infiltration
c) Condensation
d) Transpiration
97. Which of the following is not a type of water pollution?
a) Thermal pollution
b) Chemical pollution
c) Biological pollution
d) Solar pollution
98. Which of the following is a major source of water pollution caused by human activities?
a) Volcanic eruptions
b) Landslides
c) Hurricane winds
d) Industrial discharge
99. What is the name of the layer of soil and rock in which groundwater is stored?
a) Aquifer
b) Watershed
c) Water table
d) Recharge zone
100. Which of the following is not a characteristic of a healthy aquatic ecosystem?
a) High levels of dissolved oxygen
b) Low levels of nutrients
c) High levels of pollutants
d) A diverse array of aquatic organisms
