Question

Fill in the blanks:-
1. _______ is the system of acquiring knowledge by observation and experimentation.
2. ________ are used for the preservation of food.
3. ________ are applied to the human body for beautifying the appearance and for cleansing.
4. Nylon, polyester and terylene are _______ fibres.
5. _______ are chemicals that provide nutrients to crops and increase their production.​

Answer 1

Answer:

1. Science.
2. Pasteurization or fermentation
3. Cosmetics
4. Synthetic
5. Fertilizers

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