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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Air pollution is due to the
पर्याय
cutting of green plants
gases like carbon monoxide, sulphur dioxide, etc.
smoke given out by factories
all of the above
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उत्तर
all of the above
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संबंधित प्रश्न
What do you observe when a burning candle is covered with an inverted jar.
Fill in the blank
Although we cannot see air, we can ___it.
Write ‘true’ or ‘false for the following;
Air is a compound.
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
Describe a simple experiment with the help of a diagram to show that Air occupies space
Describe a simple experiment with the help of a diagram to show that Air is highly compressible
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
Take a squeezable bottle. Make a hole on the lid and close the bottle tightly. Bring the bottle near your face and press the bottle. What do you feel?
What is global warming?
State whether the following statement is true or false. If false, correct them.
Air does not occupy any space.
