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Physics - Energy - (Non)-Renewable resources - Coggle Diagram
Physics - Energy - (Non)-Renewable resources
Wind
wind turbines
coasts
generator
electricity
70-85%
Pros
no pollution
no fuel costs
no permanent damage
minimal running costs
Cons
1500 to replace a coal-fired power station
intitial costs are high
noisy
wind too strong
no wind
Solar Cells
remote places e.g. outback
Pros
no environmental damage
reliable
free
no running costs
sunny countries
very reliable source in daytime
Cons
initial costs are high
direct sunlight
expensive
daytime only
Geothermal Power
volcanic areas
hot rocks near surface
Pros
reliable
little damage to environment
free energy
Cons
high cost
aren’t many locations
Hydro-electricity
Pros
no pollution
flow of water controlled
no fuel costs
minimal running costs
Cons
initial costs are high
big impact on environment
loss of habitat
flooding of a valley
dam
water through turbines
Wave Power
Pros
no pollution
no fuel costs
useful on coastlines
wave-powered turbines
connected to generator
Cons
initial building costs are high
difficult and expensive to maintain
disturb habitats
hazard to boats
amount of energy
fairly unreliable
Tidal Barrages
big dams built across river estuaries
Pros
no pollution
reliable
no fuel costs
lots of energy
Cons
spoil view
height is variable
aren’t many suitable locations
Biofuels
Pros
reliable
continuously produced and stored
Cons
very high
deforestation
burning of vegetation increases CO2 emissions
plant products or animal poo
Non-renewable
Reliable
enough fossil fuels and nuclear
meet current demand
Power plants
set-up and running
replacing would be expensive
Nuclear fuel
cheap
slowly running out
Environmental Problems
Global Warming
Cause
burning fossil fuels realise CO2
Impact
loss of habitat
rising sea levels
Acid Rain
Causes
burning coal and oil release sulfur dioxide
Impact
harmful to trees, soil, and ecosystems
Visual Pollution
Causes
coal mining
Impacts
landscape
Oil Spillages
Causes
accidents with oil rig, pipes, tanks
Impacts
animals in and by sea
Radiation Exposure
Causes
nuclear waste is hard to dispose
release radiation
Impacts
dangerous