The state of coal, with lowest carbon content is
a) bituminous coal
b) anthracite coal
c) lignite
d) none of these
A unit of electricity means:
a) Megawatt
b) Nano watt
c) Kilowatt hour
d) Joule
Which of the following problems is associated with the burning of coal?
a) acid rain
b) carbon dioxide emissions
c) ash with toxic metal
d) all of these
Solar energy stored in material such as wood, grain, sugar, and municipal waste is called……..
a) fossil fuels
b) biomass
c) geothermal energy
d) natural gas
The world faces an energy crisis
because……….
a) world demand for energy will increase
b) world oil production will peak and begin to decline
c) shortages and the resulting escalation of prices can shock the economic and
political order
d) all of the above
A fuel cell combines hydrogen and……..to produce electricity, heat, and water.
a) Carbon
b) Oxygen
c) Uranium
d) Silicon
