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प्रश्न
Write True or False against the following statement.
D.D.T. is an important fertiliser:
पर्याय
True
False
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उत्तर
False
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संबंधित प्रश्न
Give two examples of the following substance.
Food preservatives
Give two examples of the following substance.
Medicines
Give two examples of the following substance.
Chemical war weapons
What is the contribution of chemistry in following field?
Industry
What is the contribution of chemistry in following field?
Medicines
Name the scientists who discovered the following:
Atoms
Explain in brief the importance of Chemistry in agriculture.
Differentiate between natural fibres & synthetic fibres.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Give reasons for the following
Polyester is added to natural fiber cotton, to give terylene.
