Advertisements
Advertisements
प्रश्न
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Advertisements
उत्तर
Rain water – pure natural water.
Sea water, lake water – impure form of natural water.
APPEARS IN
संबंधित प्रश्न
Give reason of Carbonated drinks are bottled under high pressure.
Explain how the peculiar variation of density of water with temperature can protect marine-life.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Give reason for the following:
The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.
Explain any two environmental impacts of an ‘oil spill’.
Select the correct word from the words in option to complete the sentence:
Dissolved air in water contains a ____ percentage of oxygen than ordinary air.
_____ is a type of rainwater harvesting.
State whether the following statement is True or False. If false, give the correct statement.
Snow and ice both are solid forms of water
Match Column I with Column II
| Column I | Column II | ||
| (a) | Ground water | (i) | Solid form of water |
| (b) | Bawri | (ii) | Wastage of water |
| (c) | Snow | (iii) | Water management |
| (d) | Drip irrigation | (iv) | Small water |
| (e) | Leaking taps | (v) | Water table |
A jumbled word is given here. Write the correct form of the word.
WOSN
