Comparing Different energy sources

What is the approximate space required to power a 10-watt light bulb using solar energy?

• 95,000 square kilometers

• 0.3 square meters

• 7 square meters

• 1,200 square kilometers

Which energy source requires the least space to generate electricity?

• Wind power

• Solar power

• Nuclear energy

• Fossil fuels

How much space would be needed to power the entire world using wind energy?

• Roughly the area of Grand Bahama island

• A little less than the area of Delaware

• Approximately the area of South Korea

• About the area of Mexico

What is a significant challenge when installing wind turbines?

• They function best in urban settings

• They must be spaced to avoid efficiency loss due to turbulence

• They require a desert environment

• They need to be very close to each other

Which energy source is noted for having almost no marginal costs?

• Nuclear

• Fossil fuels

• Hydroelectric

• Solar

What is a major environmental concern associated with the continued use of fossil fuels?

• Inefficiency in power generation

• Contribution to greenhouse gas emissions

• Low space requirement

• High cost of infrastructure

Which region is suggested to potentially rely entirely on renewable energy?

• South Korea

• The U.S.

• Delaware

• Mexico

What is a major cost consideration for nuclear energy?

• High initial building cost

• Cost of uranium

• Cost of wind turbines

• Cost of solar panels

What is the primary source of energy for the Earth?

• Wind

• Water

• Sun

• Geothermal

Why are fossils fuels so widely used?

• They are renewable so they won't run out.

• They pollution they produce is less compared to renewable energy sources.

• They are easy to obtain and process.

• They don't disrupt the environment when mined from the earth.