Question

The following graph compares the greenhouse gas emissions from different forms of electricity production.

A bar graph of C O 2 equivalent emissions for full energy chain in grams per kilowatt hour lists the minimum and maximum values for the following sources: Coal, 860, 1290; Oil; 689, 890; Gas, 460, 1234; Hydro, 16, 410; Nuclear, 9, 30; wind, 11, 75; Solar P V, 30, 279; and Biomass, 37, 116.
Which conclusion is supported by the information in the graph?
Nuclear power releases less greenhouse gases than other forms of power.
Nuclear power releases an average amount of greenhouse gases.
Nuclear power releases no greenhouse gases.
Nuclear power releases more greenhouse gases than other forms of power.

Answer 1

Nuclear power releases less greenhouse gases than other forms of power.

Justification: the graph shows nuclear emissions at 9–30 g CO2e/kWh, which is lower than the ranges for coal, oil, gas, solar, biomass and most of hydro and wind — so nuclear has among the lowest emissions.