Note: Only Answer the Question if you are 100 % sure. This question is from Environmental Economics, So Answer it from Environmental Economics Prospective if you are 100 %. Q.1120. According to Robert Solow, sustainability focuses on instead of Therefore, living standard/well-being particular resources sustainability implies preservation of all resources sustainability does not imply preservation of all resources preservation does not imply sustainability Q 119. Suppose there are only two firms (A and B) in the market, with the marginal abatement costs MACa=80-Ea, and MACb=65-0.5Eb, respectively. (Ea and Eb are emissions of firm A and firm B, respectively.) An emission standard (command-and-control) policy which allows each firm 30 units of emissions is An emission standard (command-and-control) policy which allows each firm 50 units of emissions S cost-effective not cost-effective cost-effective not cost-effective