What were some of the effects of
the growing population in Russia?

Starvation/Famine

Explanation:

As the population boomed in Russia in the late 1800s and early 1900s, the serfdom found itself unable to feed itself, the nobility, and the clergy, as a result the Russian people started the Red October, which eventually saw the fall of the Russian Empire and the Rise of the USSR.

they united the colonies in their fight against the british.

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.