Alternative Energy

Which of the following is NOT an alternative energy source?

• fossil fuels
• geothermal
• hydroelectric
• wind 

Hot water is pumped up from deep inside Earth and is used to heat homes or to generate electricity. This describes...

• biofuels
• hydroelectric energy
• geothermal energy
• hot water heating

As water flows through a dam, a generator is turned and creates enough electricity for thousands of homes. This describes...

• biofuels
• hydroelectric energy
• geothermal energy.
• potential energy

One problem with ____ energy is that it produces radioactive waste. 

• nuclear
• solar
• tidal
• geothermal

Oil, natural gas and coal are called ________resources because they are not easy to replace.

• fossil fuels
• cheap
• natural resources
• nonrenewable

Fossil fuels are a major source of air pollution and therefore, a major contributor to _____________________!

• ozone depletion
• global warming
• skin cancer
• none of the above

Corn, wheat, and soybeans can be made into a substance called ethanol. In some places, ethanol is part of a mixture used to power cars and trucks. What type of alternative energy resource is ethanol?

• non-renewable
• Geothermal
• Biofuel
• Solar

Why are fossil fuels more widely used than solar energy?

• Solar energy is harder to find
• Fossil fuels are much cheaper
• Fossil fuels are more abundant
• The sun's energy can never be harnessed

The purpose of the panels is to change solar energy into ____________.

• light energy
• electrical energy
• chemical energy
• mechanical energy

Which of the methods of generating electricity does NOT use alternative energy resources? 

• Burning natural gas in a power plant
• Turbines spinning in dam
• Solar panels taking in light energy 
• Drilling wells to reach hot rocks deep inside the earth