OAV-WATER (PRACTICE SET-3)

Questions in this test

1. Wet clothes become dry because of
2. Which of the following leads to cloud formation?
3. Which of the following leads to dew formation?
4. ______ is used to remove soluble impurities in water?
5. Which of the following rivers does not originate in India?
6. The part of the earth which contains water is called
7. Which of the following is not a process of water cleaning?
8. Which of the following is not soluble in water?
9. In a mixture of sand and water, sand settles down at the bottom, is a process of
10. Which of the following salts is the main cause of the permanent hardness of water?