SNC2D Climate Change

What is the definition of "Greenhouse Effect?"

• Gases that increase Earth's temperature

• when the gases in Earth’s atmosphere trap heat from the Sun and keep the planet warm

• the pattern of weather that occurs over time

• When our climate changes

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What is the definition of weather?

• The condition of the air/atmosphere around the Earth

• The pattern of weather over time

• Rain and Snow

• When water falls from the sky

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What is the definition of climate?

• The condition of the air around the Earth

• The rainforest

• The pattern of weather over time

• How hot it is in a certain place

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97% of scientists believe what is causing climate change?

• Animals and Plants

• Eco-Friendly Cars

• Humans

• Conservation of energy

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What are some potential consequences of climate change?

• The sea levels will rise putting seaside towns and cities at risk of drowning

• The sea levels will drop putting seaside towns and cities at risk of drowning

• More extreme weather

• Animals will be able to adapt to the changes

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Which of the following gases DOES NOT trap heat?

• carbon dioxide
• nitrogen
• water vapor
• methane

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

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The average temperature of the surface of Earth has increased approximately 1°C 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

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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

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The main human activity that releases greenhouse gases is

• using public transportation and there by reduce the affects of greenhouse gases.

• burning fossil fuels

• texting on cellphones

• eating meat

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