Answer:
b. the marginal social benefit to exceed the marginal private cost of the last unit produced.
Explanation:
<u>Positive Externality-</u>
Positive Externality occurs when production or the consumption or of the good causes benefit to the third party.
For example, when the individual consume education in order to be uplifted and get a benefit but this education also benefits the society by uplifting the whole society.
<u>Positive externality causes the marginal social benefit to be greater than the marginal private benefit.</u>
Answer:
Islands are surrounded by water on all the four sides whereas peninsulas are surrounded by water on three sides.. Islands are of two types continental or oceanic whereas peninsulas can only be continental. Islands can be found in groups whereas peninsulas are always single.
Explanation:
Convergent boundaries form strong earthquakes, as well as volcanic mountains or islands, when the sinking oceanic plate melts. The third type is transform boundaries, or boundaries where plates slide past each other, forming strong earthquakes.