Wednesday, 23 November 2011

Renewable or Non-renewable Energy Resources

What are Renewable or Non-renewable Energy Resources?

1.Energy resources are divided into  two groups:
·        Renewable energy
·        Non-renewable energy

2.Renewable energy can be replenished when
   used up.

3. Non-renewable energy  cannot be replenished
    when used up.

4. Renewable energy resources include solar 
    energy, wind energy, geothermal energy from
    inside the Earth, biomass from plants and   
    hydropower from water stores in reservoirs
    and oceans in the form of wave.
5. We get most of our energy from 
    non-renewable energy resources, which 
    include crude oil, natural gas and coal.
    They are called fossil fuels because
    they are formed over millions of years
    from the remains of dead plants and animals
    by the action of heat from the Earth’s core 
    and pressure from the rock and soil. Fossil 
    fuels are continually produced by decaying
    plant and animal matter, but the rate of
    their production is extremely slow, very 
    much slower than the rate at which we 
    use them.

Renewable Energy

Non-renewable Energy

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