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प्रश्न
Fill in the blank
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called _____.
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उत्तर
The reddish-brown powder on the surface of iron nails exposed to air and moisture is called rust.
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संबंधित प्रश्न
“Air is a mixture”. Support this statement citing at least three evidences.
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
Classify Water. Also give a balanced equation to prepare it.
Write fully balanced equation for the following :
CO2 + H2O →
Define the following:
Combustion.
Fill in the blanks
Plants and animals maintain the balance of carbon ___________and _________ in the air.
What happens if the percentage of carbon-dioxide increases in the air?
When air is moving with cool and soothing, it is called a cyclone.
The amount of water vapour in the air is more in windy places than in other areas.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
A weather cock shows the ______ in which the air is moving at that place.
