Renewable and Nonrenewable Resources

Substances that cannot easily be replaced once they are used are called.

Which is true of renewable energy sources?

When fossil fuels burn, they give off this hurtful gas into the environment.

Worms are great for composting bins because they are _________________?

Energy from the sun is called _________________.

A ___________________ is a resource that is fairly easy to replace if it is used.

Which of the following is NOT a threat to our planet?

Growing plants without using soil is called?

What would be a great title for this poster?

What is the best way to minimize your carbon footprint?

___________ is a substance that is burned to release its stored energy.

Steve takes an old tire and turns it into a swing. Which form of conservation is he performing?

__________________ is energy from the natural heat within the earth's crust.

Can a person lead a life where they contribute no waste to the environment?

______________ are fuels formed from decayed plants and animals that lived long ago.