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.

Fill in the blanks. 1.____ is the system of acquiring knowledge by o

1.	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.
Answer» 1. Science2. SODIUM benzoate.3.cosmetics4.Rayon5.SulphateExplanation: