The curve usually seen in a production possibilities frontier can be explained by

An economy's use of fewer production resources that it would be maximum production. ... The curve usually seen in a production possibilities frontier can be explained by this. shift to the right. An increase in an economy's labor force generally causes this.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.

answer; acquired mainly during early childhood;