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प्रश्न
Name two air pollutants which affect our health.
उत्तर
Two air pollutants that affect our health are:
- DUST
- SMOKE
APPEARS IN
संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
Fill in the blank:
_____________ discovered the oxygen gas.
Give two uses of the following component present in air:
oxygen
Name two air pollutants which cause acid rain.
State what do you understand by the term ‘air’. Explain its importance to mankind.
A mixture has a variable composition. Give three other reasons why air is considered a mixture and not a compound.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
What should be done if the clothes of a person catch fire accidentally? Why?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement
Air is a ______ of some gases.
