NGSS.HS-ESS2-6

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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NGSS.HS-ESS2-6

Trees, crops, garbage, & landfill gas are all examples of 

• Energy
• Biomass
• Heat
• Nuclear waste

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NGSS.HS-ESS2-6

which of these FOSSIL FUELS burns the cleanest?

• coal
• natural gas
• motor oil
• petroleum

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NGSS.HS-ESS2-6

The major long-term problem with using coal to generate electricity is the ________.

• environmental damage in the area around the mine
• water pollution
• carbon dioxide released

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NGSS.HS-ESS2-6

The main human activity that releases greenhouse gases is

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

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NGSS.HS-ESS2-6

Which of the following is contributing to an INCREASE in carbon dioxide in the atmosphere?

• deforestation

• photosynthesis

• oceans

• all of the above

• the loss of animal species

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NGSS.HS-ESS2-6

Human activities have an effect on the concentration of all of the following atmospheric gases EXCEPT __________.

• carbon dioxide

• methane

• ozone

• water vapor

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NGSS.HS-ESS2-6

What happens to 1/4 of the greenhouse gases in the atmosphere?

• It is released into space.

• It gets absorbed by the ocean.

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NGSS.HS-ESS2-6

How do carbon emissions lead to global warming?

• By trapping the sun's heat in the atmosphere

• By causing very hot volcanic eruptions

• By catching fire in the atmosphere

• By increasing the amount of carbon in Earth's crust

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NGSS.HS-ESS2-6

Isotopes of what element helps scientists look sources of carbon dioxide in ice core data and in modern measurements?

• Carbon

• Nitrogen

• Oxygen

• Sulfur

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NGSS.HS-ESS2-6