1.The average cost of electricity                              (increases/ decreases) as the size of the wind turbine increases. 2.For information goods such as a music video distributed online, the...

1.The average cost of electricity(increases/ decreases) as the size of the wind turbine increases.

2.For information goods such as a music video distributed online, the cost of producing the first copy is very ,
 but the marginal cost is
 .