Climate Change

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

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

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

 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.

What gas from the list below is a cause for global warming?

• Urethane
• Oxygen
• Carbon Dioxide

What do scientists think the effect will be of having more greenhouse gases in our atmosphere?

• More warming of the atmosphere
• More cooling of the atmosphere
• More air in the atmosphere
• Less air in the atmosphere

Increased carbon dioxide may cause global warming by trapping more ____________ in the atmosphere.

• water
• gases
• heat
• water vapor

Which natural process removes carbon dioxide from the atmosphere?

• forest fires
• volcanic eruptions
• cellular respiration
• photosynthesis

How does the concentration of carbon dioxide in the atmosphere affect climate?

• As carbon dioxide concentrations increase, temperatures increase
• As carbon dioxide concentration increase, temperatures decrease.
• Carbon dioxide concentrations have no affect on climate
• As carbon dioxide concentrations increase, temperatures become more random.

What is one way that carbon enters the atmosphere?

• Sunlight
• Vehicle emissions/Exhaust
• Ocean uptake
• Rain