Which of the following is not a waterborne disease?
a) Cholera
b) Typhoid
c) Malaria
d) Dysentery
Answer: c) Malaria

What is the main purpose of desalination plants?
a) Removing pollutants from water
b) Converting saltwater to freshwater
c) Recycling wastewater
d) Storing freshwater
Answer: b) Converting saltwater to freshwater

What does the term “aquifer” refer to?
a) A body of permeable rock that can contain or transmit groundwater
b) A large artificial lake
c) The upper layer of soil that holds moisture
d) A water storage tank
Answer: a) A body of permeable rock that can contain or transmit groundwater

Which of the following is not a source of groundwater contamination?
a) Industrial waste
b) Pesticides
c) Ocean water
d) Sewage
Answer: c) Ocean water

What is the process called when plants absorb water from the soil and release it into the atmosphere?
a) Evaporation
b) Transpiration
c) Condensation
d) Infiltration
Answer: b) Transpiration

Which of the following is the primary source of water pollution in urban areas?
a) Agricultural runoff
b) Industrial discharge
c) Sewage
d) Littering
Answer: c) Sewage

What is the term used to describe water that flows into a larger body of water?
a) Tributary
b) Delta
c) Estuary
d) Aquifer
Answer: a) Tributary

Which of the following gases is a greenhouse gas that contributes to global warming?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Argon
Answer: b) Carbon dioxide

What is the term for the removal of salts from saline water to make it suitable for consumption?
a) Filtration
b) Distillation
c) Desalination
d) Chlorination
Answer: c) Desalination

Which of the following is a natural cause of water pollution?
a) Oil spills
b) Volcanic eruptions
c) Industrial waste
d) Agricultural runoff
Answer: b) Volcanic eruptions

What is the primary factor that determines the solubility of gases in water?
a) Temperature
b) Pressure
c) pH
d) Salinity
Answer: a) Temperature