Which of the following inventions destroyed the first market for petroleum?
a. the light bulb
b. the automobile
c. plastics
d. frozen foods

The light bulb (A) destroyed the first market for petroleum.

Before the invention of light bulbs, petroleum rather than electricity was used to light homes, streets, and everything in between. After the light bulb became common place, the need for gas lighting diminished, therefore effectively destroying the first market for petroleum.

b europeans take corn to africa. corn becomes an important crop there.

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.