Homework #11 (Climate Change)

Which of the following gases DOES NOT trap heat?

• carbon dioxide
• nitrogen
• water vapor
• methane

If you took away the atmosphere’s natural greenhouse effect, and everything else stayed the same, Earth’s temperature would be   

• 10-20°F warmer
• 30-40°F warmer
• 10-20°F cooler
• 50-60°F cooler

Which of the following have been linked to climate change?  

• droughts
• flooding
• melting of polar ice caps
• all of the above

Visible light reaches Earth’s surface while infrared light is trapped as heat. Which characteristic of Earth’s atmosphere causes this to happen?

• the hole in the ozone
• the greenhouse effect
• atmospheric pressure
• the inversion layer

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?

• lower levels of ozone in the atmosphere
• lower levels of nitrogen in the atmosphere
• higher levels of carbon dioxide in the atmosphere
• higher levels of oxygen in the atmosphere

Which is a primary energy source used by power plants to generate electricity?

• coal
• wood
• gasoline
• batteries

Which of the following is the best conclusion that can be made from this graph?

• atmospheric carbon dioxide levels have been decreasing since 1960
• Hawaii has a lot of carbon dioxide
• humans have been working hard to decrease carbon dioxide levels
• atmospheric carbon dioxide levels have increased steadily since 1960

97% of scientists believe what is causing climate change?

• Animals and Plants

• Eco-Friendly Cars

• Humans

• Conservation of energy

What is the definition of renewable energy sources?

• sources of energy that will never go away or be used up

• Sources of energy that can go away and be used up

• Wind, Solar, Hydro, Geothermal

• Coal, Oil, Gas

What is the definition of non-renewable energy sources?

• sources of energy that will never go away or be used up

• Sources of energy that can go away and be used up

• Wind, Solar, Hydro, Geothermal

• Coal, Oil, Gas