The Vietnam war should be the right answer
Answer:In 1492, Christopher Columbus, supported by the Spanish government, undertook a voyage to find a new route to Asia and inadvertently encountered “new” lands in the Americas full of long established communities and cultures. Other European countries quickly followed suit and began to explore and invade the New World.
Explanation:
Answer: Physics
Explanation: Physics is the field of science that studies an objects behavior in a certain time and space.
Factory production was greatly improved by standardized parts and assembly line production; true