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प्रश्न
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.
उत्तर
A weather cock shows the direction in which the air is moving at that place.
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संबंधित प्रश्न
Give two examples of modern fuels.
Name the following:
The product formed when phosphorus burns in oxygen.
Name the following:
The active component of air which supports combustion and is used up in burning
Of the total volume of air – 4/5th is nitrogen. State the utility or consequence of this ratio.
Mention one necessary condition for the combustion to take place.
List out the uses of carbon dioxide.
_____ gas turns lime water milky.
Whales come up to the water surface to breathe in oxygen.
Write about the reaction of nitrogen with non metals.
The main component of air is oxygen.
