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प्रश्न
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
उत्तर
(a) Solid
(b) Gaseous
(c) Well
(d) Lake
(e) Ice
APPEARS IN
संबंधित प्रश्न
Give one word for the following statement:
The gaseous form of water found in air .
What is the smallest particle of water ? Describe it’s structure.
A captain of ship will tell you that an iceberg is much bigger than it looks. Why is it so ?
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
Answer the following question:
Name two gases dissolved in natural water.
Explain why:
Rain water does not leave behind concentric rings when boiled.
Why is it said that seawater is useful even though it is not potable?
Answer in your own words.
Why is there a shortage of water even though it occupies about 71% of the earth’s surface?
Give a balanced equation for the following conversion:
Calcium sulphate in permanent hard water to calcium carbonate using sodium carbonate.
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
Complete the statement by filling the blank with the correct word from the option.
The ratio of hydrogen & oxygen in water is ____.
Fill in the blank:
The type of water softened by addition of washing soda is ______.
Name one substance which is ‘deliquescent’.
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
- Identify the districts that get only low annual rainfall in Tamilnadu.
- Identify the districts that get a medium annual rainfall in Tamilnadu.
- State the districts that enjoy high annual rainfall in Tamilnadu.
The jumbled word is given here. Write the correct form of each word.
QUIFERA
From where do the following usually get water? In which form is water present in them?
Animals
Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a waterborne disease?
Wells are fed by
Look at Fig. 14.1.
Write down activities shown in this figure in which water is being used.
