Question

7. a) What are the raw materials required in the manufacturing glass and explain how glass
Is manufactured
b) Why is nylon used to make the bristles of tooth brush?
8. a) Explain the statement: "Pressure of water increases with depth with the help of a
Diagram
c) A pressure of 50N/m2 acts on an area of 5m2. Calculate the net force.​

Answer 1

Answer:

Glass is made from natural and abundant raw materials (sand, soda ash and limestone) that are melted at very high temperature to form a new material: glass. ... As a result, glass can be poured, blown, press and moulded into plenty of shapes.