Answer Happy

The graph below shows the share of omissions produced by fossil fuel-burning plants, sorted by age of the plant and the emission produced by different types of fuel per unit of electricity generated. Which decade of power plants produces the largest amount of electricity relative to the amount of nitrogen oxides and sulfur dioxide emissions? (a) Percentage of total 35 30 25 20 15 10 OR 5 1980s 20005 1950s 1960s 1970s 19805 Age of unit (decade unt bogan operating) Electricity generation Nitrogen oxides emissions Carbon dioxide emissions Sulfur dioxide emissions

10 5 0 1950s 1960s 1970s Age of unit (decade unit began operating) 1980s Electricity generation Carbon dioxide emissions Nitrogen oxides emis Sulfur dioxide emissio a. 1950s b.2000s c. 1970s d. 1990s