Coal

Identify the fuel that leaves more smoke and ash on burning.

• Solid fuel

• Liquid fuels

• Gaseous fuels

• Any one of the above

What do fuels combine with to produce heat and light?

• Carbon dioxide

• Carbon monoxide

• Hydrogen

• Oxygen

What type of coal is this?

• Lignite

• Sub-bituminous

• Bituminous

• Anthracite

What type of coal is this?

• Lignite

• Sub-bituminous

• Bituminous

• Anthracite

Which of the following is considered a fossil fuel?

• Solar energy

• Wind power

• Coal

• Hydropower

what is the earliest stage of coal? (this has the least amount of energy and is the youngest)

• peat

• lignite

• bituminous

• anthracite

Which of the following coal types is most valuable?

• Peat

• Anthracite

• Bituminous

• Lignite

Answer explanation

Anthracite is the most valuable type of coal because it pollutes the least. Unfortunately, it is the coal type we have the least of.

Which of the following is a characteristic of coal?

• It is a clean energy source.

• It is a renewable resource.

• It is a major source of air pollution.

• It is the least used energy source in the world.

Which country has the largest proven coal reserves?

• China

• United States

• Russia

• India

Which of the following is not a type of coal?

• Lignite

• Bituminous

• Anthracite

• Peat