Considera importante conocer el rol del geólogo en las actividades antropicas? ¿Porque?

What first caused people to consider that the continents were once one large landmass?

Describe the four major spheres of the earth system; identify the parts of the earth they each represent. explain what is meant by the "earth system."

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.