Non-Renewable and Exhaustible Resources Video Lecture | Science Class 8

fossil fuels are non-renewable energy
resources these are coal oil and natural
gas they were formed from the remains of
living organisms millions of years ago
and they release heat energy when
they're burned this heat is used to turn
water into steam which is used to turn a
turbine which then drives a generator to
generate electricity this is the
standard model for a power station there
are downsides however fossil fuels
release sulfur dioxide and carbon
dioxide which leads to acid rain and an
increase in global warming
another form of non-renewable energy is
nuclear the main nuclear fuels are
uranium and plutonium the nuclei of
these large atoms are split in a process
called nuclear fission to release a
great deal of heat the heat energy is
again used to boil water the kinetic
energy in the expanding steam spins
turbines which then drive generators to
produce electricity unlike fossil fuels
nuclear fuels do not produce carbon or
sulfur dioxide however they do have the
risk of a fault where large amounts of
radioactive material could be released
into the environment such as a disaster
of Chernobyl in 1986
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