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प्रश्न
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
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उत्तर
- Solid
- Gaseous
- Well
- Lake
- Ice
APPEARS IN
संबंधित प्रश्न
Give reason for Silica gel pouches are kept in unused water bottle.
Give balanced chemical equation for the reaction of water with Iron .
Give the molecular formula of water ?
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
Explain rain water harvesting.
The water in a lake is called ground water.
State any two sources of water pollution.
Explain any two environmental impacts of an ‘oil spill’.
Give the influence of pressure.
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.
Give a reason for the following:
A crusty ‘boiler scale’ is formed in boilers, when hard water is used.
Unscramble the words and fill in the blanks.
- ondencsaonti ______
- vaeionorpat ______
- ecippitatrino ______
Sea water can be used for irrigation as such.
Nitrogen is used for the treatment of drinking water.
Which of the following does not show water shortage?
State whether the following statement is True or False. If false, write the correct statement.
Rapid growth of industries is one of the causes for water shortage
A jumbled word is given here. Write the correct form of the word.
CHARREGE
Think and suggest some ways to minimise waste and pollutants at their source, taking your home as an example.
In which of the following activities will you use minimum amount of water?
