Advertisements
Advertisements
प्रश्न
A jumbled word is given here. Write the correct form of the word.
QUIFERA
Advertisements
उत्तर
AQUIFER
APPEARS IN
संबंधित प्रश्न
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Water has ...................... density and .................. volume at 4°C.
Give one word for the following statement:
The gaseous form of water found in air .
Answer the following question.
Suggest three ways to conserve water.
Explain why:
Air dissolved in water contains a higher proportion of oxygen.
Explain why:
Table salts become sticky on exposure to humid air during the rainy season.
What is the composition of water? In what volume its elements combine?
What do you understand by permanent hardness?
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Household detergents contain mainly ______ and pollute water bodies.
Fill in the blank:
The type of water softened by addition of washing soda is ______.
Explain why oil spills have an adverse effect on marine life.
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.
In the coastal areas, wind current moves from the sea towards the land during the day; but during the night it moves from land to the sea. Discuss the reason.
State whether the following statement is True or False. If false, give the correct statement.
Snow and ice both are solid forms of water
A jumbled word is given here. Write the correct form of the word.
WOSN
Why is there a need for conserving water? Give two reasons.
