Hello!
Children help immensely in today's world. They inherit knowledge throw school and people. Then they grow up to invent things that can change the world, for better or worse who knows. Then they have children and the process repeats.
I hope it helps!
Diary and artifact.
Primary Sources come from the original time or event. A diary represents a first-hand account of something by the original person. An artifact does virtually the same thing, being from that time period. All the other choices are incorrect because they are often told in a way that changes the original story or event.
It was England that was the birth place of the Industrial Revolution, mostly due to the availability of manpower and resources. The Industrial Revolution quickly spread to the US however.
Science (astronomy, geography, humanity, maths and medicine )
It gave women work because of all the lives lost