I believe the answer is: positive externality
Positive externality refers to The benefit that enjoyed by a third party when the first and second party are conducting a transaction.
When you receive a vaccines, you prevent yourself from becoming a host that could contaminate other people from getting the virus. In the example above, you and your children are the first and second party. And other children are the third party.
I believe the answer you are looking for is the homestead act of 1862
Sahara.<span>Namib.</span><span>The Kalahari Desert.</span><span>Thar Desert.</span><span>Gobi Desert.</span>
The person above me is correct lol
