What was the influence of nomadic peoples on civilized societies

What two properties affect the density of ocean water

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.

Formidable obstacles of climate, terrain, and distance hinder exploitation of natural resources in russia. true false