Climate Change Impact

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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The main human activity that releases greenhouse gases is...

• using bottled water

• burning fossil fuels

• texting on cellphones

• eating meat

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Melting of glaciers and polar ice caps....

• will result in cooler temperatures in the Arctic

• will result in sea-levels rising

• Will have no effect on ecosystems

• None of the above

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Consequences of climate change include:

• Stronger hurricanes

• Increased flooding

• Frequent droughts

• All of the above

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Climate scientists agree human activity is causing global temperatures to rise.

• TRUE

• FALSE

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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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Which of the following have been linked to climate change?

• droughts

• flooding

• melting of polar ice caps

• all of the above

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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

The impact on the planet due to global warming is called...

• climate change

• the seasons

• the weather

• natural change

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Increasing quantities of CO₂ (Carbon Dioxide) in the atmosphere will cause air temperatures to be _____. 

• warmer

• cooler

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