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प्रश्न
Draw a neat labelled diagram for the following experiment.
To study the presence of carbon dioxide in air.
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उत्तर
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संबंधित प्रश्न
Fill in the blank:
_____________ discovered the oxygen gas.
What do you observe when Carbon dioxide gas is passed through lime water.
Give two uses of the following component present in air:
nitrogen
State four steps to be taken to control air pollution.
The capacity of air to hold moisture depends upon the ______ of the air.
Water does not have a ______ but has definite ______ and ______.
Name a device which uses wind energy to generate electricity.
The composition of air is always exactly the same.
The process of conversion of iron into hydrated form of oxides is called _______.
Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.
