Question

rearrange
1.synthetic/world's scientists /the need/during/severe shortages/or/world war/alerted/a number of/the/to/man-made materials/for
2.sheer nylon hose/in 1939/women/the DuPont company/marketing/for/began

Answer 1

1. During the world war world’s scientists alerted the need for a number of man-made synthetic materials or severe shortages.

Or

World’s scientists alerted the need for a number of man-made synthetic materials or severe shortages during the world war.

2. DuPont company began marketing sheer nylon hose for women in 1939.