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Fertilizers and Pesticides


19. 

Which of the following is a balanced source of plant nutrient?

Answer : C. NPK

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20. 

Which is an important chemical as it is used to manufacture fertilizers?

Answer : A. Ammonia

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21. 

Fertilizers which contain only one plant nutrient is called as

Answer : B. straight fertilizers

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22. 

Fertilizers which contain two or more nutrients in one compound are known as

Answer : B. complex or compound fertilizers

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23. 

Group of fertilizers are soluble in water and hygroscopic in nature is ___________

Answer : C. Nitrate fertilizers

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24. 

DDT stands for _________

Answer : A. Dichloro Diphenyl Trichloroethane

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