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!
A synergy between iron and steel, railroads and coal developed at the beginning of the Second Industrial Revolution. Railroads allowed cheap transportation of materials and products, which in turn led to cheap rails to build more roads. Railroads also benefited from cheap coal for their steam locomotives.
Answer:
Texas
Explanation:
they fought over the annexation of texas
I think the third option would be a suitable answer.