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प्रश्न
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
विकल्प
gram plant
rice plant
sweet peas plant
peas plant
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उत्तर
rice plant
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संबंधित प्रश्न
What are the causes of air pollution?
A fuel when used releases least amount of pollutants in the air.
Complete and balance the following equation
CaO + H2O →
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Fill in the blanks
Plants and animals maintain the balance of carbon ___________and _________ in 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.
Why do we see the sky and air clear and clean after rainfall?
______ is the percentage of nitrogen in air.
_____ gas turns lime water milky.
Match the following.
| Nitrogen | Respiration in living animals |
| Oxygen | Fertilizer |
| Carbon dioxide | Refrigerator |
| Dry ice | Fire extinguisher |
