How can i solve the problem and can any onw solve the problem and give me the answer plz

How did the movement of soldiers during world war 1 contribute to the global influenza (flu) pandemic of 1918 to 1919, which killed millions of people

People keep spending additional units of a particular resource on a want until their marginal benefit is  decreasing withgreater thanless thannot affected by  their marginal cost.

Unlike other andean nations, chile has a relatively small population of mestizos people of european descent indians people of asian descent