HELP PLLZ What is one internal factor that contributed to changes in states after 1900?

Political changes were accompanied by major demographic and social consequences.

Explanation:

In the case of Britain easy access to coal, and an abundance of water ways (combined with non-environmental factors) allowed Britain to be a thriving early Industrial power. On the other hand a lack of environmental resources encouraged many western powers to intensify imperialism in the search for resources

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.