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प्रश्न
Name the following:
The type of bacteria which directly absorb nitrogen from the air and converted soluble nitrates in the soil.
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उत्तर
Symbiotic bacteria.
संबंधित प्रश्न
Tick (√) the most appropriate answer.
The presence of water vapour in air is essential for :
Tick (√) the most appropriate answer.
Which is not a polluting gas for the air?
Name three noble gases present in the air. State their one industrial use
Complete and balance the following equation
CaO + H2O →
Define the following:
Combustion.
Give reason:
Mountaineers and divers carry oxygen cylinders with them.
Fill in the blank
The supporter of combustion in air is _____.
Name the components of air with their approximate percentage by volume in air. Does the percentage by volume of each component remain the same, in the atmosphere of different parts of the world? Explain with reasons.
Name the following:
The product of respiration released in exhaled air, other than carbon dioxide.
Mention one necessary condition for the combustion to take place.
