About 95 percent of Earth’s surface is covered by water

Wind energy is used to turn the blades of large wind turbines.

Nuclear energy is a renewable resource.

__________ is a solid fossil fuel.

______________ are energy sources made from the remains of living organisms.

The energy of the heat inside Earth is called _____________ .

Energy that comes from the sun is _________________.

When petroleum is removed from the ground, is a mixture of many different kinds of products

In the refinery elements that are in petroleum can’t be separated.

Once the process at the refinery is done, the products are stored at the refinery until they are shipped to gas stations.

A liquid fossil fuel that formed from ocean water organisms is __________.

Rain or snow that has a large amount of acid is _________.

A renewable resource that is generated from the Earth’s interior is ____________.

A resource that that cannot be replaced as fast as it is used is a _________________.