Advertisements
Advertisements
Question
Fill in the blanks with the help of words given in bracket after the sentence.
Water which looks clean still has disease carrying ______ and ______ impurities.
(insects, microorganisms, particles, dissolved, harmful)
Advertisements
Solution
Water which looks clean still has disease carrying microorganisms and dissolved impurities.
APPEARS IN
RELATED QUESTIONS
What is done to make drinking water clean and safe?
Use your brain power!
How should roads and footpaths be built to make rainwater seep into the ground?
What works are undertaken to make water available even after the rainy season?
Explain the traditional ways of purifying water to make it fit for drinking.
Why are open drains a concern?
The process of adding chlorine in adequate amounts to water is called ______.
Washing soda is used to remove permanent hardness of water.
Temporary and permanent hardness can be removed by the method of boiling.
Match the following:
| 1. | The density of pure water | a. | Inflammable air |
| 2. | Henry Cavendish | b. | Cathode |
| 3. | Hydrogen | c. | 1 g/cm3 |
| 4. | Negative carbon electrode | d. | Hydrogen |
Name the chemical which converts chlorides and sulphates into insoluble carbonates.
