9.4-5 Greenhouse Gasses & Climate Change

When we discuss greenhouse gases what is the main one we discuss?

• Methane (CH₄)
• Carbon Dioxide (CO₂)
• Nitrous oxide (N₂O)
• Flourinated gases

T/F: Water vapor is a greenhouse gas

• True
• False

Consequences of climate change include:

• Stronger hurricanes
• Increased flooding
• Frequent droughts
• All of the above

What results from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills?

• Carbon Dioxide

• Methane

• Water Vapor

• Fluorinated Gases

• Nitrous Oxide

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

Large bodies of water affect climate because

• water heats up and cools more slowly than land
• water heats up and cools faster than land
• water and land cool at the same time
• water and land heat at the same rate

Which of the following has cause repeating 100,000-year cycles of ice ages in the past?

• an increase in sun spots
• several major volcanic eruptions
• changes in Earth;s orbit and tilt of its axis
• continental drift

How do scientists collect evidence about climate? 

• using remote sensing from space with satellites
• by ground-based measurements of surface temperatures, carbon dioxide concentration and sea level
• by collecting “proxy data” from tree rings, ice cores, and historical records
• all of the above

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

What two factors are affecting the oceans due to climate change?

• decrease in temperature and increase in pH

• increase in salt levels and decrease in sea levels

• increase in temperature and decrease in pH