Nonrenewable
What are nonrenewable resources?
Resources that take millions of years to form and can't be replaced quickly
What does "renewable resource" mean?
A resource that can be replaced naturally over time
What's one advantage of using fossil fuels?
They produce a lot of energy and are currently easy to use
What gas is mostly responsible for global warming?
Carbon dioxide
What's one simple way to use less fossil fuels at home?
Turning off lights when not needed
Name the 4 nonrenewable energy sources
Coal, petroleum, nuclear energy, methane
Name the 5 renewable energy sources
Solar power, hydropower, wind power, biomass, and geothermal energy
What's one disadvantage of nuclear energy?
Difficult to dispose of waste
What human activity adds a lot of carbon dioxide to the atmosphere?
Burning fossil fuels
What type of transportation helps reduce carbon dioxide emissionsf?
Biking, walking, or using electric cars
Why are fossil fuels bad for the environment?
They release carbon dioxide when burned
Why is solar power considered eco-friendly?
It doesn't produce pollution or carbon dioxide
Which energy type helps reduce air pollution: renewable or nonrenewable?
Renewable energy
Earth's temperature increases (global warming)
How does planting trees help with carbon dioxide?
Trees absorb carbon dioxide from the air
_______ - energy produced by atomic reactions through nuclear fission ( splitting the nucleus of an atom?
nuclear
What is one disadvantage of wind energy?
It depends on the wind blowing, which isn't always guaranteed
Why is hydroelectric power considered renewable?
It uses flowing water, which is naturally replaced
How does global warming affect polar ice?
It causes the ice to melt
What's one way schools can help reduce carbon emissions?
Using less paper or adding recycling bins
___ - fossil fuel; formed from the remains of small marine plants and animals buried under heat and pressure?
oil
What renewable energy comes from underground heat?
Geothermal energy
What's a major disadvantage of nonrenewable energy?
It causes pollution and contributes to climate change
What are two signs of climate change caused by carbon dioxide?
Rising sea levels and extreme weather
What is "clean energy"?
Energy that doesn't produce pollution or carbon dioxide, like wind or solar