Aliens and Energy Quiz - p12

What are fossil fuels formed from?

• Chemical reactions in the Earth's core

• Meteorite impacts

• Volcanic eruptions

• Ancient remains of plants and animals

What is the main reason people depend on fossil fuels for energy?

• Abundance in the universe

• Ease of extraction

• High energy efficiency

• Convenience and availability

What environmental problems are caused by burning fossil fuels?

• Deforestation

• Air pollution

• Ocean acidification

• Soil erosion

How long does it take to create fossil fuels?

• Millions of years

• Thousands of years

• Instantaneously

• Billions of years

What is the main reason scientists are looking at better ways to harness the sun's energy?

• To decrease energy efficiency

• To prolong the sun's lifespan

• To reduce global warming

• To increase energy prices

What is the main process involved in burning coal to make electricity?

• Nuclear fission

• Photosynthesis

• Chemical combustion

• Heating water into steam

What drives generators to produce electricity in power plants?

• Hydroelectric dams

• Wind turbines

• Solar panels

• High-pressure steam

What is the main reason the sun's energy is considered a better alternative to fossil fuels?

• Ease of transportation

• Higher energy density

• Inexhaustible supply

• Lower environmental impact

What is the main reason the sun will keep releasing energy for at least a few billion years more?

• Infinite nuclear fuel reserves

• Nuclear fusion reactions

• Stable gravitational forces

• Constant solar flares

What is the main reason burning fossil fuels causes pollution and other environmental problems?

• Acid rain formation

• Depletion of the ozone layer

• Release of toxic gases and particles

• Increase in greenhouse gas emissions