Unit 5 Week 3 Vocab

What is pollution?

• When the environment is always clean and there is no trash

• A type of gas found in the air

• When the environment is contaminated by trash, gases, or chemicals

• A type of renewable energy resource

What is carbon dioxide?

• When there is a lot of trash in the environment

• a gas made by burning carbon and organic compounds, and by breathing

• a gas made by making carbon and organic compounds, and by breathing

• a type of renewable energy source

What is renewable energy?

• Energy that comes from natural sources, like the sun, wind, and water, and never runs out

• Energy that comes from natural sources, like the sun, wind, and water, but it always runs out

• A type of gas that is released into the environment by burning carbon or by breathing

• When the environment has a lot of trash and harmful gases

What is non-renewable energy?

• Energy resource that cannot be replaced quickly once it’s used

• When the environment is full of trash and harmful gases

• A type of gas released into the air made by burning carbon and breathing

• Energy resource that can always be replaced quickly once it’s used.

What is biodiesel?

• Fuel made from oil, coal, and fossil fuels

• Fuel made from vegetable oils, animal fats, and recycled grease

• Fuel made from candy, ice cream, and pizza

• Fuel made from solar panels, wind energy, and water power