That a person could live in the modern world without synthetic substances is probably possible, but whoever tried to do it would soon miss many common things. (46) Just imagine how many varieties of plastics there are. They can be harder than wood or .softer than rubber. They can even be made resistant to fire, water and electricity.
Whoever visits the world's market places will find that plastics are being made and used everywhere. Plastic articles can be produced at a rather low cost. The machines for molding them are not large or heavy. Most of the products can be stored and transported easily. (47).

A.softer
B.
C.
D.
E.
F.(50).
G.
H.
I.
J.
K.
L.