What does TDS stand for in water analysis?
a) Total Dissolved Solids
b) Total Dehydrated Salts
c) Total Dispersed Solvents
d) Total Dynamic Solids
Answer: a) Total Dissolved Solids
Which water treatment process involves passing water through a semipermeable membrane?
a) Filtration
b) Distillation
c) Reverse osmosis
d) Chlorination
Answer: c) Reverse osmosis
Which of the following is not a common contaminant in drinking water?
a) Lead
b) Mercury
c) Oxygen
d) Nitrates
Answer: c) Oxygen
What is the main function of wetlands in water purification?
a) Absorbing water pollutants
b) Adding minerals to water
c) Increasing water flow
d) Heating water
Answer: a) Absorbing water pollutants
Which process involves the conversion of water vapor into liquid water?
a) Evaporation
b) Condensation
c) Sublimation
d) Infiltration
Answer: b) Condensation
The pH of acid rain typically falls below:
a) 6
b) 7
c) 8
d) 9
Answer: a) 6
What is the primary cause of the depletion of the ozone layer?
a) Chlorofluorocarbons (CFCs)
b) Carbon dioxide
c) Nitrogen oxides
d) Sulfur dioxide
Answer: a) Chlorofluorocarbons (CFCs)
Which process describes the movement of water through the Earth’s surface and atmosphere?
a) Water cycle
b) Carbon cycle
c) Nitrogen cycle
d) Oxygen cycle
Answer: a) Water cycle
Which of the following is a major use of water in agriculture?
a) Irrigation
b) Cooling machinery
c) Power generation
d) Drinking water supply
Answer: a) Irrigation
What is the name of the process by which groundwater is replenished?
a) Condensation
b) Evaporation
c) Recharge
d) Filtration
Answer: c) Recharge
This website uses cookies.