Renewable Energy Basics

Why are carbon dioxide emissions bad?

• they stink

• they contribute the the greenhouse effect, containing heat within the atmosphere and causing the global warming crisis

• they're just bad

• it kills people

What percentage of all carbon dioxide emissions comes from burning fossil fuels?

• 80%

• 20%

• 57%

• 40%

Which renewable energy source uses water to generate electricity?

• hydroelectric

• wind

• solar

• geothermal

• biofuels

Which renewable energy source uses heat from the Earth to generate electricity?

• hydroelectric

• wind

• solar

• geothermal

• biofuels

Which renewable energy source uses the sun to generate electricity?

• hydroelectric

• wind

• solar

• geothermal

• biofuels

Which renewable energy source uses the wind to generate electricity?

• hydroelectric

• wind

• solar

• geothermal

• biofuels

Which renewable energy source emits the most carbon dioxide gas?

• hydroelectric

• wind

• solar

• geothermal

• biofuels

Which of these is NOT a source of renewable energy?

• solar

• geothermal

• coal

• wind

What type of energy do dams generate?

• wind

• solar

• hydroelectric

• geothermal

Which renewable energy source is the most common?

• hydroelectric

• wind

• solar

• geothermal

• biofuels