What characteristic do all renewable resources share?

• Produced by waste products
• Form underground from dead organisms.
  
• Replaced in a short period of time
• Allow energy to pass through them easily

Which of the following is a fossil fuel?

• Wind
• Coal
• Solar
• Biomass

Petroleum and natural gas form from...

• strong winds
• cooled magma
• radioactive materials
• remains of plants and animals 

Hydroelectric power produces electricity using.....

• Wind
• Sunlight
• Moving water
• Dung

The careful use of a resource is....

• recycling
• pollution
• depositing
• conservation

 Energy from the sun is known as......... 

• hydroelectric energy
• geothermal energy
• solar energy
• wind energy

The energy resource that is most affected by change in weather is_____________?

• geothermal 
• wind
• nuclear
• natural gas

The cleanest burning fossil fuel is ______.

• coal
• oil
• wind
• natural gas

Which of the following is a nonrenewable resource?

• milk
• coal
• biomass
• water

Water is renewable because it.......

• can be frozen
• important to all life
• can be replaced constantly
• can evaporate