Energy sources Flashcards
what are the different types of non renewable energy sources?
-fossil fuels
-nuclear fuels
what are the different types of renewable energy sources?
-the sun
-waves
-tides
-biofuels
-wind
-hot rocks beneath the ground
-water up high
what is an advantage of coal?
easy to access through mining
what is an disadvantage of coal?
emits toxic products
what is an advantage of oil?
readily available
what is an disadvantage of oil?
pollution in seas
what is an advantage of gas?
relatively low cost
what is an disadvantage of gas?
emits CO2
what is an advantage of biofuel?
reduces foreign oil dependency
what is an disadvantage of biofuel?
require fertilisers that cause water degradation
what is an advantage of nuclear?
low carbon energy sources
what is an disadvantage of nuclear?
radioactive waste
what is an advantage of solar?
minimal maintenance required
what is an disadvantage of solar?
expensive
what is an advantage of tidal?
more powerful than wind
what is an disadvantage of tidal?
high construction costs
what is an advantage of wind?
cost effective
what is an disadvantage of wind?
difficult to predict
what is an advantage of wave?
environmentally friendly
what is an disadvantage of wave?
disturbs sea floor
what is an advantage of geothermal?
always available
what is an disadvantage of geothermal?
needs to be close to tectonic boundaries
what is an advantage of hydroelectric?
clean and sustainable
what is an disadvantage of hydroelectric?
alters aquatic habitats
