________________________ happens when there is not enough of a resource to make all of the products people want.

Renewable resources are resources that _____________.

Today, forests cover only _____________ of our country.

People mainly cut down forests for __________________________.

The US depends mainly on what 2 things to support our economy?

The Rocky Mountains have a large deposit of _______________________.

Nonrenewable energy resources include _____________________.

The US has large supplies in of oil in which 2 states?

Renewable energy resources include __________________________________.

Ethanol is a gas made out of ________________________.

________________________ are flat plates that collect sunlight and turns it into electricity.

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