Suppose the level of pollution is such that the marginal social benefit due to pollution is greater than the marginal social cost of pollution, then: a. the level of pollution should decrease to get to the socially optimal amount of pollution. b. the level of pollution should increase to get to the socially optimal amount of pollution. c. total surplus will rise if pollution is decreased. d. the economy is producing the socially optimal level of pollution.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.

i honestly have no idea