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प्रश्न
Statement given below is incorrect. Write the correct statement :
Symbiotic bacteria are present in nodules of cereal plants such as wheat.
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उत्तर
Symbiotic bacteria are present in nodules of pod bearing plants such as peas, grams, etc.
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संबंधित प्रश्न
Tick (√) the most appropriate answer.
A gas which dilutes the activity of oxygen in air is:
Write down the composition of three main gases present in air by volume.
What are the two necessary conditions for rusting of iron?
The diagrams below represents an experiment to show the presence of a component of air.

- State why air is sucked from – outlet ‘B’ and not from outlet “A”
- State why the air is sucked ‘slowly’ from the outlet “B”
- State the observation seen after completion of the experiment.
- State the reason for the above observation seen.
- Name another component which if present in air as a pollutant would have given a similar observation
Name the following:
A process which removes carbon dioxide from the air.
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.
Give word equation for the following conversion:
Nitrogen of the air to nitric oxide
Inhaled air contains a large amount of carbon-di-oxide.
Write about the reaction of nitrogen with non metals.
Which gas is essential for burning?
