Answer:
A
Explanation:
The USA has lots of gas and gasoline to fuel cars, buses, airplanes. The answer is A. Hope this helps!
Answer: D
Explanation: China had a Communist revolution after WWII
Aerial warfare really became prevalent during World War one. It was the first time we see dogfight but not really bombing raids because of the crude nature of the planes.
Answer:
It was the Oregon Trail i think
Explanation: