I need help with these 2 questions please

QueSLIVII Z (1 PUIIly Polluters tend to overproduce because: Consumers are not willing to pay prices reflecting true social benefits Private costs exceed social costs Social benefits exceed private benefits Polluters pay less than the true social costs for certain resources Question 3 (1 point) As additional consumers obtain the benefits of a pure public good, such as national defense, the benefits to the existing consumer will: Increase Decline O Stay the same Increase the short run but decrease in the long run