What is an advantage of using chlorine gas to disinfect drinking water supplies?
A) It provides residual protection against pathogens.
B) It gives the water a fresh taste.
C) Residual chlorine in water helps to whiten teeth.
D) Excess chlorine is absorbed in our bodies as a mineral supplement.
Question 2
Why are there few odors emanating from a properly managed composting toilet?
A) Tight seals prevent the escape of odors.
B) Odors are absorbed by a layer of water.
C) Decomposition is aerobic.
D) The ventilation system steers odors through a carbon filter.
Water chain in cytochrome f
A gasoline testing kit, including an insulated container where water at 100°F is used to heat a ...
A container with gasoline containing alcohol. Notice the separation line where the alcohol-water ...
This internal bypass passage in the thermostat housing directs cold coolant to the water pump.
The Excretory System Water and waste products from cells
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...