Unit 6 pt 3

How does geothermal energy generate electricity?

• By using solar panels to capture sunlight

• By using the heat stored in the Earth’s interior to heat up water, which is brought back to the surface as steam to drive an electric generator

• By burning fossil fuels to produce steam

• By using wind to spin a turbine

What are some environmental concerns associated with geothermal energy?

• It releases large amounts of carbon dioxide

• It can cause the release of hydrogen sulfide

• It depletes the ozone layer

• It contributes to deforestation

Evaluate the potential benefits and drawbacks of using hydrogen fuel cells as an alternative energy source.

• They are inexpensive and produce carbon dioxide

• They have a high environmental impact and are easy to produce

• They produce no carbon dioxide when hydrogen is produced from water, but the technology is expensive

• They are renewable and cause significant pollution

Explain how wind turbines convert wind energy into electricity.

• By using solar panels to capture sunlight

• By using the kinetic energy of moving air to spin a turbine, which converts mechanical energy into electricity

• By burning fossil fuels to produce steam

• By using geothermal heat to generate steam

Discuss the impact of wind turbines on wildlife and propose a solution to mitigate this issue.

• Wind turbines have no impact on wildlife

• Birds and bats may be killed by turbine blades; solutions include designing bird-friendly turbines

• Wind turbines cause deforestation

• Wind turbines increase greenhouse gas emissions

Identify methods for conserving energy around a home.

• Increasing the use of fossil fuels

• Adjusting the thermostat, conserving water, using energy-efficient appliances, and conservation landscaping

• Using more incandescent light bulbs

• Increasing water usage

Analyze the effectiveness of large-scale energy conservation methods and suggest improvements.

• Large-scale methods are ineffective and should be abandoned

• Improving fuel economy, using BEVs and hybrid vehicles, public transportation, and green building design are effective; improvements could include more incentives for green technology

• Large-scale methods increase energy consumption

• Large-scale methods only focus on increasing fossil fuel usage

What is a primary product of hydrogen fuel cells, and why is it considered environmentally friendly?

• Carbon dioxide; it is a greenhouse gas

• Water; it is a clean emission

• Methane; it is a renewable resource

• Sulfur dioxide; it is non-polluting