Climate Change (greenhouse effect0

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.

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 Which of the following activities contributes the most to carbon emissions globally?

• Deforestation
• Agriculture
• Burning fossil fuels
• Respiration

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The diagram represents solar energy that is absorbed by Earth's land and water surfaces and is changed into heat that radiates back into the atmosphere.What is this process called?

• ozone
• radiation
• greenhouse effect
• evaporation

A greenhouse gas which is present in very high amounts is 

• propane
• ethane
• methane
• CO2

Too many greenhouse gasses in the atmosphere may block heat from escaping into space and trap too much heat next to the Earth’s surface causing

• another ice age
• global warming
• earthquakes
• volcanic eruptions

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How are humans making greenhouse gases of our own?

• burning fossil fuels in our cars
• burning forests
• with large scale agriculture
• all of these

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What can you do to help slow down global warming?

• Decrease your carbon footprint by eating locally produced food 
•  recycle and reuse plastics
• use solar or wind power instead of fossil fuels
• all of the above

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Do we need greenhouse gases on Earth?

• Yes - they keep the Earth warm
• Yes - they keep all the gases on our planet
• No - they only cause terrible climate change
• No - they only block some of the Sun's rays

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Which of the following is a greenhouse gas created form cows and other cattle?

• CO2

• Methane

• Chloroflorcarbon

• water vaopur

1. In the past, refrigerators, aerosol spray propellants, hair spray, and cleaning solvents were all sources of a greenhouse gas known as________

• CO2

• methane

• Chlorofluorocarbon (CFC)

• water vapour