106. Which of the following is not a factor that affects water quality?
a) Temperature
b) pH
c) Humidity
d) Nutrient levels
Answer: c) Humidity
107. What is the name of the process by which water is forced through a semipermeable membrane to remove impurities?
a) Filtration
b) Desalination
c) Distillation
d) Reverse osmosis
Answer: d) Reverse osmosis