3.3 Global Warming

The main human activity that releases greenhouse gases is

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

Why is the increase of Greenhouse gasses a big issue?

• It causes climate change and increase in the global temerature 
• It can lead to a major increase in Greenhouses 
• It leads to more factories
• It causes a major decrease in people

How can global warming cause sea levels to rise? Choose the best answer.

• by causing it to rain more often
• by melting glaciers and ice caps
• by increasing the number of undersea volcanic eruptions
• by creating bigger and more powerful hurricanes

Why does cutting down trees increase global warming?

• trees soak up carbon dioxide
• trees provide shade which counteracts global warming
• trees absorbs the sun's energy without radiating back into the atmosphere
• trees drain greenhouse gases like methane from soil

What happens to the temperature if more greenhouse gases are released into the atmosphere?

• Temperature goes up
• Temperature goes down

Things you can do to help decrease global warming include:

• Eat more ice cream.
• Keep your freezer door open.
• Keep your air conditioner on high.
• Turn off your lights when you’re not using them.

Worldwide, temperatures have been increasing for more than 100 years.  Is this evidence of global warming?

• yes
• no

What is Global Warming?

• Increasing temperature in Earth's atmosphere

• Decreasing temperature in a city

• Increasing rain rates in Earth

• Decreasing temperature rates

Without the Greenhouse Effect the Earth would be too

• warm 
• cold
• dead
• funny

Which of the following is NOT an effect of Global Warming?

• Polar ice caps will melt.
• Coastal regions will be covered with rising sea levels.
• Some areas will experience serious droughts
• The Earth's rotation will slow down and eventually stop