ESS Semester 2 review

Compared to other greenhouse gases, carbon dioxide is very effective in trapping heat near the surface of the Earth.

• true
• false

Which of the following have been linked to climate change?  

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

The average temperature of the surface of Earth has increased approximately 1°C (1.8°F) 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 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

The main human activity that releases greenhouse gases is

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

Some greenhouse gases are naturally present in the Earth's atmosphere

• True
• False

Melting of glaciers and polar ice caps....

• will result in cooler temperatures in the Arctic
• will result in sea-levels rising
• Will have no effect on ecosystems
• None of the above

Carbon is stored in

• Trees and other living things
• Oceans
• underground in soil and fossil fuels
• All are correct

What is the process by which carbon is moved from storage in rocks in the earth and in oceans to being free in atmosphere and living things and back again into the rocks?

• carbon cycle

• green house gasses

• climate change

• Global warming

Which of the following is NOT a natural cause of climate change?

• pollution
• meteorite collisions
• solar spots
• Volcanic eruptions