Show the added benefits, added cost, and added net benefits(graphically would be best) created by changing the amount of abatement, environmental

Show the added benefits, added cost, and added net benefits(graphically would be best) created by changing the amount of abatement, environmental quality, or any other public good from the market-determined quantity to the efficient quantity. Describe why SMB is decreasing as quantity increases and describe why SMC is increasing as quantity increases. In order to get a larger quantity of the public good to be produced and consumed beyond the current or market amount, that will be necessary?