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प्रश्न
Name the chemicals which help in increasing food production.
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उत्तर
Chemicals which help in increasing food production are fertilisers like urea, sodium nitrate, potash, ammonium phosphate, calcium nitrate, etc. Pesticides like aldrin, malathion which are used to kill pests. Insecticides like D.D.T., B.H.C. fungicides like sulphur, Bordeaux mixture, etc.
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संबंधित प्रश्न
Give two examples of the following substance.
Medicines
What is the contribution of chemistry in following field?
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Name the scientists who discovered the following:
Atoms
Name the scientists who discovered the following:
Oxygen
Fill in the blank:
L.P.G. is used for ___________
Write True or False against the following statement.
D.D.T. is an important fertiliser:
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
Preservatives are added to food or beverages.
Give reasons for the following
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Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
