Sea Levels
Energy Sources
Greenhouse Gases
Major Impacts
The Atmosphere
100
Why are glaciers melting?
Due to global temperatures increasing.
100
Name the three major fossil fuels.
Oil, coal, natural gas
100
Name one type of greenhouse gas.
carbon dioxide, methane, nitrous oxide, chloroflurocarbons
100
True or false. The global temperature is decreasing due to humans.
False
100
Name one element that can be found in the atmosphere.
nitrogen, oxygen, carbon
200
Why are sea levels rising?
Due to ice/glaciers melting.
200
What is a nonrenewable energy source? (definition)
-cannot be replaced/made quickly
-cannot keep up with consumption
-cannot be used over and over
200
How does most of the carbon dioxide enter the atmosphere?
burning fossil fuels, deforestation, powerplants, cars/transportation
200
Why are polar bears endangered?
They are losing their habitat due to the ice sheets melting.
200
Which layer of the atmosphere does weather occur in?
Troposphere
300
Where is most of the freshwater on Earth?
Ice
300
What are three examples of renewable energy?
wind, solar, hydro
300
True or false. Electricity generation is the largest result of U.S greenhouse gases.
True.
300
How does deforestation contribute to global warming?
It releases carbon dioxide into the atmosphere that was previously stored in trees.
300
Which layer of the atmosphere contains the ozone layer?
stratosphere
400
True or false. The average sea level worldwide is increasing exponentially.
True
400
What is a renewable resource? (definition)
-can be made quickly
-can keep up with consumption
-can be used over and over
400
Name an agency that helps deal with greenhouse gases/climate change.
EPA, NOAA, IPCC
400
Name a major impact due to climate change.
ice sheets melting, extreme weather, sea levels rising
400
What does the ozone layer protect us from?
UV rays/radiation from the sun
500
Name two impacts of sea levels rising.
polar bear habitat loss, coastal flooding, loss of electricity (power lines), evacuations, endangered animals
500
What percentage of energy sources used globally are nonrenewable?
81%
500
What is the greenhouse effect?
The gases in the atmosphere trap heat, not allowing it to escape
500
Describe how the change in human population over the last 100 years has impacted the climate.
Human population has been increasing exponentially causing more cars, more fossil fuel consumption, more deforestation for living conditions, which has lead to warmer temperatures due to the greenhouse effect.
500
Name the 4 layers of the atmosphere (in order from closest to Earth to furthest from Earth).
Troposphere, Stratosphere, Mesosphere, Thermosphere