Advertisements
Advertisements
Question
Why is it said that water is life?
Advertisements
Solution
Water is one of the most precious resources that we have on earth. All the biochemical processes that occur in plants and animals, our surroundings, etc. require water to function. It is required for the existence of life on earth, as it is an essential component of all the biological processes. We cannot imagine our lives without the presence of water.
RELATED QUESTIONS
What do you mean by water pollution ?
Identify A, B, C and D; first one is done for you.
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Fill in the blank:
The sample of hard water which lathers with soap after boiling and filtration contains _____.
State the importance of water for all general uses.
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 |
37% of our brain‛s mass consists of water.
State whether the following statement is True or False. If false, give the correct statement.
51% of the earth’s surface is covered with water
Open drain system is a breeding place for which of the following?
Look at the figure.
Write down activities shown in this figure in which water is being used.
