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 or beautifying the appearance and for cleansing.
4.Nylan, polyester and terylene are ____ fibres.
5.____ are chemicals that provide nutrients to crops and increase their production.
Answers
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2
Answer:
1. Science
2. sodium benzoate.
3.cosmetics
4.Rayon
5.Sulphate
Explanation:
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