SCORE | ALREADY PASSED
with 4.7% of the world's 1/4
population the US uses about
the world's commercial
energy
the total useful energy from an energy resource minus the
net energy is
amount of energy used and wasted in producing it
the energy source with the natural gas
highest net energy ratio for
transportation is
petroleum is made of hydrocarbons
crude oil components are separated distillation
by
distillation of crude oil can asphalt, heating oil, diesel oil
produce
petrochemicals are used as raw materials for most organic chemical production
since 1985 the oil extraction in US declined
has
oil is widely used because it is cheap, easily transported, has a high net energy,
producing crude oil from tar sands uses large amounts of water
natural gas has a net useful high, clean burning
energy yield
and is a_fuel compared to coal
because of high heat content and anthracite
low
sulfur content, the most
desirable type of coal is
the world's most abundant coal
conventional fossil fuel is
coal reserves in the US 300 years
should last how long?
subsidence can result from underground coal mining
synfuel doesnt do what produce more air pollution than coal
the nuclear power industry has accidents about Chernobyl and 3 mile island, false assurances and