11. Pyrilla is pest of which crop?
12. Which of the following is a technique of watering plants by making use of narrow tubings which deliver water directly at the base of the plant?
13. Two common fungal diseases of wheat are
14. The natural dye present in turmeric is known as
15. The enzyme that coagulates milk into curd is
16. The disease 'Blast' is related to which of the following crops?
17. Which of the following is related to 'Blue Revolution'?
18. Which one of the following is used as a food preservative?
19. Soft drinks such as cocoa contain significant quantities of
20. The urea briquettes are used as a form of nitrogenous fertiliser. This is because of which of the following reason?
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