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प्रश्न
Fill in the blank
Aquatic plants and animals use _________ in water.
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उत्तर
Aquatic plants and animals use dissolved oxygen in the water.
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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 :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
What are the two necessary conditions for rusting of iron?
Name three different appliances where air is utilized.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Carbon dioxide, water vapour and energy in the form of heat are evolved during respiration.
Air is a mixture of many _______.
Whales come up to the water surface to breathe in oxygen.
______ present in the air is needed for respiration.
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
The second major component of air is oxygen.
