Fossil Fuels

Multiple Choice

Which fossil fuel reserve is expected to last the longest (approximately 100-150 years)?

• Natural gas

• Oil

• Tar sands

• Coal

Multiple Choice

What makes deeper coal reserves more energy dense?

• They are closer to the Earth's core

• There is more pressure from overlying rock layers

• They contain more minerals

• They have more access to oxygen

Multiple Choice

Which process explains how oil is formed?

•  Volcanic activity creates pressure underground

• Chemical reactions in rocks create fuel

•  Decaying marine life gets buried and compressed over time

• Plant material gets frozen under ice sheets

Multiple Choice

How could an oil spill harm ocean birds?

• By making them unable to fly due to oil-covered feathers

• By changing the ocean's temperature

• By making fish swim deeper

•  By increasing ocean salinity

Multiple Choice

Why is natural gas considered the "cleanest" fossil fuel?

•  It produces less carbon dioxide and fewer pollutants when burned

• It is easier to extract from the ground

•  It costs less money to process

•  It burns at a lower temperature

Multiple Choice

During electricity generation, what is the correct sequence of energy conversion?

• Steam → Heat → Turbine → Electricity

• Heat → Steam → Electricity → Turbine

• Heat → Steam → Turbine → Electricity

•  Steam → Turbine → Heat → Electricity