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Vicia faba and pisum sativum are recomme...

Vicia faba and pisum sativum are recommended for rotation of crops because they
1. require small amount of water
2. are cash crops
3. help in nitrogen fixation of soil
4. kill all the harmful insects

A

require small amount of water

B

are cash crops

C

help in nitrogen fixation of soil

D

kill all the harmful insects.

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TRUEMAN BIOLOGY-MINERAL NUTRITION-MULTIPLE CHOICE QUESTIONS
  1. The nodules in a plant root where nitrogen fixing bacteria live forms ...

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  2. The source of energy for non-biological nitrogen fixation is 1. by io...

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  3. Vicia faba and pisum sativum are recommended for rotation of crops bec...

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  4. Nitrogen fixing enzyme in root nodule is 1. nitrase 2. nitrogenase ...

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  5. Which of the following is an incorrect match ?

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  6. Which of the following can use elemental nitrogen as their nitrogen so...

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  7. Nitrogen fixation by organism requires conditions that are

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  8. Nodule formation is reduced in legume roots due to the deficiency of

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  9. On earth the largest reservoir of nitrogen is

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  10. Organisms that fix nitrogen in aquatic habitats are

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  11. In root nodules of leguminous plants, the pigment leghamoglobin that g...

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  12. Besides providing pink colour to the root nodules, leghaemoglobin perf...

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  13. Major nitrogen flxation is carried out by

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  14. Which one plays an important role in energy metabolism?

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  15. Most of the plants obtain nitrogen from the soil in the form of

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  16. Deficiency of nitrogen produces

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  17. Plants absorb sulphur in the form of

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  18. Which of the following is an micronutrient ?

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  19. Which of the following is not an essential micronutrient ?

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  20. Which one of the following elements is not required by plants for thei...

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