Question

In 1971, Stephanie Kwolek patented Kevlar, a fiber that can be woven into armor-like fabric that is ___ to most bullets.

A.
devious


B.
impervious


C.
transient


D.
transitive

Answer 1

D. In 1971, Stephanie Kwolek patented Kevlar, a fiber that can be woven into armor-like fabric that is impervious to most bullets. :D

Answer 2

The word you are looking for is 'impervious', which means unaffected.