When the production possibilities curve is concave from the origin, then resources can be used: a. equally well for both goods.
b. as more of one good is produced, more of the other good is sacrificed.
c. the nation can produce more of both goods.
d. the good on the horizontal axis is a free good.
e. the good on the vertical axis is a free good.

b

Explanation:

The Production possibilities curve (PPC) is a curve that shows the various combination of two goods a company can produce when all its resources are fully utilised.  

The PPC is concave to the origin. This means that as more quantities of a product is produced, the fewer resources it has available to produce another good. As a result, less of the other product would be produced. So, the opportunity cost of producing a good increase as more and more of that good is produced.

b.

c.

d.

g.

those r all of them i believe

the answer is "b.the increased supply will create a surplus. "

the essential thought behind price controls is straightforward - utilize the power of law to modify the equilibrium of a market. for instance, the legislature may choose that the steel business needs to survive, and in this way pass a law to set a value floor on steel. this implies all steel sold must offer at or over the floor value, which must be set over the equilibrium cost for it to have any impact. the switch could likewise happen - the administration can choose that steel is excessively costly and set a value roof underneath its equilibrium value, with the goal that all steel must be sold at or beneath that ceiling.