not fair at all but this is an opinionated question u literelly shouldnt be able to get it wrong
the marginal social benefit of producing and consuming another unit equals the marginal social cost.
I believe the answer is: semantic encoding
Semantic encoding refers to putting the core meaning of a certain words, phrase ,or picture in our memory rather than only putting the sound or how those things look like. The experiment concludes that memories that acquired through semantic encoding would stay much longer compared to normal method.
Answer:
3. Population- Inhabitants of a country;
Population dynamics- The change in the population
