Combustion and Fossil Fuels

What is a fuel?

• Any substance that can provide heat and produce energy when it is burned

• Some energies can be created and destroyed

• The tools that provide the heat

• Heat energy made by human

Fossil fuel is an energy providing material that comes from

• long-dead remains of living things.

• the center of the Earth.

• out space.

• the atmosphere.

Which of the following is NOT a fossil fuel.

• coal

• carbon dioxide

• petroleum oil

• natural gas

The fuel used in power plants to make electricity is

• natural gas.

• petroleum oil.

• coal.

• water.

Most energy modern people use comes from

• nuclear power.

• using wind energy.

• using the sun's energy.

• burning fossil fuels.

Heat and _____________ transformed living things into fossil fuels.

• pressure

• air

• gas

• water

Fossil fuels are a _______________________.

• renewable resource

• unknown resource

• nonrenewable resource

• new resource

The supply of fossil fuels is NOT rapidly depleting.

• true

• false

Burning fossil fuels causes ____________ and ____________.

• acid rain

• clean air

• air pollution

• clean cities

_____________ and ____________ trap heat in Earth's atmosphere.

• oxygen

• carbon dioxide

• greenhouse gases

• nitrogen