Advertisements
Advertisements
Question
State the importance of water cycle in nature.
Advertisements
Solution
(1) Water cycle helps in regulating weather on the earth.
(2) Water cycle makes water available in various forms on the earth.
APPEARS IN
RELATED QUESTIONS
What is metal activity series ?
What are the main causes of water pollution ? How can it be controlled ?
Give reason of Alcohol is mixed with water and is used in car radiator.
Answer the following question.
Suggest three ways to conserve water.
Give a balanced equation for the following conversion:
Potassium oxide to a strong alkali.
Match the terms in List I with the correct answers in List II.
| List I | List II |
| 1. Solubility in a given solvent decreases with an increase in temperature. | A: Na2SO4.10H2O |
| 2. A white efflorescent crystal | B: NaOH |
| 3. A hygroscopic dehydrating agent | C: Ca(HCO3)2 |
| 4. A deliquescent alkali | D: conc. H2SO4 |
| 5. A substance present in temporary hard water | E: CaSO4 |
Which state government made rain water harvesting mandatory in the year 2001?
Match the following
| 1. | Flood | Lake |
| 2. | Surface water | Evaporation |
| 3. | Sunlight | Water vapour |
| 4. | Cloud | Pole |
| 5. | Frozen water | Increased rainfall |
Total earth’s surface covered by water is
From where do the following usually get water? In which form is water present in them?
Aquifer
