Coal and Its Uses Quiz-Student Energy

What is coal primarily made of?

• Iron

• Aluminum

• Carbon

• Silicon

How many main types or ranks is coal classified into?

• Five

• Two

• Three

• Four

Which mining method currently accounts for a larger share of world coal production?

• Drift mining

• Hydraulic mining

• Surface mining

• Underground mining

What is the general rule about the higher grade of coal?

• It has less heat content

• It is less versatile

• It burns dirtier

• It burns cleaner

What is coal first milled to in order to convert it to electricity?

• Coarse powder

• Liquid form

• Granules

• Fine powder

What is coal converted to for steelmaking?

• Synthetic gas

• Liquid fuels

• Coke

• Natural gas

What is the leading cause of acid rain from coal combustion?

• Heavy metals

• Mercury

• Nitrogen

• Sulfur

What percentage of the world's electricity does coal provide?

• 30%

• 20%

• 40%

• 50%

What has prompted the development of clean coal technologies like carbon capture and storage?

• Concerns about climate change

• Concerns about coal shortage

• Concerns about coal mining accidents

• Concerns about coal pollution

What is coal's composition that causes pollution problems?

• Mercury and heavy metals only

• Sulfur and nitrogen only

• Sulfur, nitrogen, mercury, and heavy metals

• Carbon only