Causes and Impacts of Climate Change

Melting of glaciers and polar ice caps....

• will result in cooler temperatures in the Arctic

• will result in sea-levels rising

• will help polar bears move into southern areas

• will make ocean currents warmer

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Climate change makes hurricanes stronger because

• warm ocean water evaporates to form hurricanes.

• the hot air moves more to form hurricanes.

• there are more clouds.

• the drought causes hurricanes

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How do stronger wildfires and droughts relate to climate change.

• warmer temperatures mean hotter fires

• more evaporation from the ground makes the soil drier

• fires need carbon dioxide to burn

• greenhouse gases reduce the amount of water vapor in the air

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The greenhouse effect is natural as it helps to sustain (keep) life on earth by trapping heat in the atmosphere.

• False

• True

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The ocean can absorb CO2 from the atmosphere.

• True

• False

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What is anthropogenic climate change?

• Extreme variability in the climate due to natural causes.

• The rapid change in climate caused by human activity.

• The increase of greenhouse gasses in the atmosphere by the burning of fossil fuels.

• The lack of snow on March 5.

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What facts about climate change are indisputable?

• CO2 is a greenhouse gas and greenhouse gases hold heat

• Humans are responsible for increased CO2 in the atmosphere

• Natural CO2 emissions from peat bogs and volcanos are responsible for increased CO2 in the atmosphere.

• The whole in the ozone layer is allowing more solar radiation to reach the earth.

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What is the primary cause of recent climate change?

• Natural climate cycles

• Volcanic eruptions

• Human activities such as burning fossil fuels

• Solar radiation changes

Which of the following is a significant impact of climate change on oceans?

• Decreased salinity

• Increased ocean acidity

• Reduced ocean currents

• Increased fish populations

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How does deforestation contribute to climate change?

• By increasing oxygen levels

• By reducing carbon dioxide levels

• By increasing carbon dioxide levels

• By cooling the Earth's surface

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