The Basics
What are the 3 Main Fossil Fuels
Coal, Oil, and Natural gas
Define Energy Efficiency
Using less energy to do the same task
What does EROEI stand for?
Energy Return On Energy Invested
What gas released by fossil fuels causes climate change?
Carbon Dioxside
Which is cleaner fossil fuels or renewable energy?
Renewable energy
How are Fossil Fuels formed?
From dead plants and animals over millions of years :(
What happens to most energy during use?
It is lost (mostly as heat)
what happens when EROEI is high?
You receive more energy than you spent
What is one environmental problem from Fossil fuels?
Air pollution/ Oil spills/ climate change
Why are Fossil fuels still widely used?
Cheap, reliable,lots of infastructure
Are Fossil Fuels Renewable or Nonrenewable?
Nonrenewable
What is an example of Energy Efficiency
LED bulbs, efficient cars, insulation
Is it better to have high or low EROEI
High
What type of pollution comes from burning coal?
Air pollution
What is a renewable alternative?
Solar, wind, hydro
What % of the worlds energy comes from Fossil Fuels (approx)
About 80%
Why is Energy Efficiency important?
It reduces waste a pollution
Why is Tar sands low EROEI?
It takes a lot of energy to exstract
Why are Fossil fuels considered dirty energy?
They produce green house gases and pollution
Why is renewable better longterm
They don't run out and produce less energy