What will happen if the population is more than the resources is the country has?

Probably the country would have a hard time trying to stabilize its economy and such because the higher the population, the more resources are to be used. And the more resources are used the less resources there will be in the future. The counrty would be forced to borrow some resources/funds from the World Bank, thus resulting in the inflation of taxes and such cousing the country to be a "poor and struggling" one.