Advertisements
Advertisements
प्रश्न
State any two sources of water pollution.
Advertisements
उत्तर
Two sources of water pollution are:
(a) Industrial waste
(b) Sewage.
APPEARS IN
संबंधित प्रश्न
What are the main causes of water pollution ? How can it be controlled ?
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
Explain rain water harvesting.
Why is it said that seawater is useful even though it is not potable?
State what is potable water. Give its qualities or characteristics which make it fit for human consumption.
Select the correct answer of the following statement:
A solution which can pass through a filter paper but not through a semipermeable membrane.
Select the correct word from the words in option to complete the sentence:
If pressure on the surface of water increases its boiling point ____ and freezing point ____.
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.
From where do the following usually get water? In which form is water present in them?
Clouds
Why should we not throw cooking oil and fats down the drain?
