Advertisements
Advertisements
प्रश्न
State what is potable water. Give its qualities or characteristics which make it fit for human consumption.
Advertisements
उत्तर
Potable water : “That water which is fit for human consumption and for drinking purposes.”
Characteristics of potable water:
- Water should be free from harmful bacteria, germs, suspended impurities and harmful salts.
- Should be clear, colourless and odourless.
- Should contain small amounts of dissolved gases and minerals for good taste.
- Should have dissolved air and salts of (Na, Ca, Mg) which impart taste to the water and are useful for metabolic functions of the human body.
APPEARS IN
संबंधित प्रश्न
Name the gas produced when steam is passed over hot coke.
Give reason of Alcohol is mixed with water and is used in car radiator.
Use of excessive .................... by farmers causes water pollution.
The ultimate source of all water on the earth is
Describe the water-cycle in nature.
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
Explain why rivers and lakes do not freeze easily.
Explain why:
Rain water does not leave behind concentric rings when boiled.
Water levels in rivers increase greatly during ______.
What is saltwater?
