Read the story and answer the questions to test your comprehension.
Airbags were invented in 1951 and not required on cars until 1989. A frontal crash at speeds as slow as 14 mph is enough to deploy the airbag. When a chip in the engine senses a crash or a vehicle fire, the airbag fills very quickly with nitrogen gas. Airbags inflate in .02 seconds and deflate immediately after impact. They reduce fatalities by about 8%.