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प्रश्न
A jumbled word is given here. Write the correct form of the word.
WOSN
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उत्तर
SNOW
APPEARS IN
संबंधित प्रश्न
Why is water very precious for all living being ?
Give any three important uses of water.
Explain how the peculiar variation of density of water with temperature can protect marine-life.
State whether the given statement are true or false. If true, write the reason.
Water availability per person in India is declining.
Explain why:
Fused CaCl2 or conc. H2SO4 is used in a desiccator.
Compare the effect of soaps and detergents on hard water.
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Select the correct answer of the following statement:
A decahydrate crystal.
Complete the statement by filling the blank with the correct word from the option.
The ratio of hydrogen & oxygen in water is ____.
Define ‘eutrophication’.
What is meant by the term ‘oil spill’?
State the causes of ‘eutrophication’.
What is meant by the term ‘offshore drilling’. State the main environmental effects of offshore drilling.
True or false? Correct the wrong statement.
We get rainwater throughout the year.
Water levels in rivers increase greatly during ______.
______ plays a vital role in the evolution and survival of life.
Nitrogen is used for the treatment of drinking water.
A man travelling on a train threw an empty packet of food on the platform. Do you think this is a proper waste disposal method? Elaborate.
Match the items of Column I with the items of Column II with reference to sewage.
| Column I | Column II | ||
| (a) | Inorganic impurities | (i) | phosphorus and nitrogen |
| (b) | Organic impurities | (ii) | nitrates and phosphates |
| (c) | Nutrients | (iii) | cholera and typhoid |
| (d) | Bacteria | (iv) | pesticides and herbicides |
Fill in the blanks selecting words from the following list
snow, rain, clouds, vapour, evaporation, transpiration.
Water, as ______ goes into atmosphere by the processes of ______ and ______ and forms ______, which on condensation fall in the form of ______ and ______.
