Tengo una solución de 450gr de acero inoxidable, donde 150 son de hierro y 300 de aluminio. Escribí: Cuál es el St, cuál el Sv, y cuál es el %M/M de hierro en aluminio en esta solución.

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.