The industrial revolution contributed the most to 19th century European imperialism due to the high demand for natural resources such as iron and coal for the economic and military needs of the British and the French

that is very true it was also an era of the shortest life expectancy as people in the workhouses were not cared for and worker had no rights and were worked to death

racism and segregation.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make 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.