Which policy has been a cost-effective way to reduce sulfur dioxide emissions? a) enacting cap-and-trade legislation b) implementing scrubber technology on all power plants c) burning high-sulfur coal d) banning the emissions of sulfur dioxide entirely

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg