In which of the following countries would a federal style of government be most effective? a country with one single ethnicity a country with many ethnic groups a country with a compact shape a country with several political exclaves

A federal government is a system that divides up power between a strong national government and smaller local governments.

I believe the answer is B. A country with many ethnic groups.

The scientist can conclude that there is a decrease in the natural resources due to human activities. because of innovation and modernization of the environment, then there goes pollution and other bad effects that destroys the natural resources.