Cuadro comparativo de las ventajas y desventajas de utilizar energias eolica, solar y termica para el hogar

answer; /// the answer to the first question is (b) it began when people first deliberately seeds; /// and (d); // it gave people a steady food supple for the first time;

b) the planets year length would be longer

hope this !

buildings sir and respect

they had freedom from the government and from the affairs