Nonrenewable Energy
Which fossil fuel emits the most CO2 per unit of energy?
Coal
What type of renewable energy comes from sunlight?
Solar
Name one way to conserve energy at home.
Using LED lights / unplugging devices / efficient appliances
EROI stands for what?
Energy Returned on Energy Invested
Which type of mining is used for coal near the surface?
Surface mining
What is the main environmental risk of oil drilling?
Oil spills / water pollution
Wind turbines convert what type of energy into electricity?
Kinetic energy
What type of bulbs should be used to save energy?
Incandescent bulbs
Fluorescent bulbs
LED bulbs
Halogen bulbs
LED bulbs
A wind turbine generates 5,000 kWh in a day. How much energy does it produce in a week?
35,000 kWh
Which type of mining digs deep shafts underground?
Subsurface mining
Nuclear power plants use this type of fuel.
Uranium
What is a disadvantage of hydroelectric dams?
Habitat disruption / changes in river ecosystem
What is cogeneration?
Using waste heat from electricity production for additional energy
If a power plant produces 1,000 MW and uses 2,000 MW of energy input, what is its EROI?
0.5
Fracking is used to extract what?
Natural gas and oil
Name one advantage of natural gas over coal.
Burns cleaner / emits less CO2
Which renewable energy uses organic matter like wood or crops?
Biomass
Which of the following is the most effective method for conserving energy in your home?
Leaving lights on to avoid frequently turning them on and off
Using energy-efficient appliances and LED light bulbs
Keeping electronic devices on standby mode when not in use
Running your dishwasher with half loads to save water
Using energy-efficient appliances and LED light bulbs
If a coal plant burns 10,000 kg of coal to produce 50,000 kWh, what is the net energy?
50,000 kWh minus energy used to extract/transport coal
Name one environmental impact of mining.
Habitat destruction / water pollution / air pollution / erosion
What % of the energy the US uses is nonrenewable?
90%
How much of U.S. energy production and consumption comes from renewable energy sources?
9%
Give an example of energy conservation in transportation.
Public transit / carpooling / hybrid or electric vehicles
An individual has been driving a passenger vehicle to work, averaging 60 miles a week in a car that averages 22 miles per gallon. The individual plans to purchase a hybrid vehicle that averages 50 miles per gallon. If the individual drives to work 50 weeks a year, how much gas will they save if they switch to a hybrid vehicle for their commute?
76 gallons
What is mountaintop removal?
Removing entire tops of mountains to access underground layer of coal