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प्रश्न
Name the following.
Inert gases in the air
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उत्तर
Helium, Neon, Argon, Radon, Xenon, Krypton
संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
What is wind?
What is air pollution?
Fill in the blank
Polluted air is harmful to ____.
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.
The layer of air around the earth is known as ______.
______ is important for all living creatures.
In a number of musical instruments, air plays an important role. Can you name some such instruments?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
The ______ makes the windmill rotate.
Explain the following observations very briefly
A firki does not rotate in a closed area.
