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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.
Medicines
How is chemistry helpful in improving the health of human beings?
_____________ help to increase the production of food.
Fill in the blank:
Inert gases were discovered by ___________
Choose the correct alternative from the choices given below for the following statement:
The chemicals prescribed by a doctor in the treatment of infectious diseases are called
Explain in brief the importance of Chemistry in agriculture.
Explain in brief the importance of Chemistry in the production of various products.
Give reasons for the following
Titanium dioxide is an important ingredient in cosmetics.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Give reasons for the following
All medicines must be taken under proper doctors' supervision and in the correct dose.
