it is critical to control the world's population because it is increasing day by day and due to the increasement of population, global warming is increasing and global warming is bringing a terrific change in this environment.
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>
B I think I don’t know but I have that feeling that it is b
Not hypothesis, observation