What is an assembly line and who invented it?

Ford's assembly line starts rolling. On December 1, 1913, Henry Ford installs the first moving assembly line for the mass production of an entire automobile. His innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes.

Explanation:

An assembly line is when people specialize in making one part in order to combine all of the parts to make something. Henry Ford created the first assembly line.

Explanation:

id say bottom left to top top left to bottom right and middle to middle

explanation:

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.