Humans Impact on Climate

Carbon dioxide is given off when gas, oil, and coal are burned.

• True
• False

Long-term change in global trends of warming, cooling, precipitation, wind directions and other related measures.

• global warming
• climate
• climate change
• greenhouse gases

Examine the graph. What do the data show about the change in global temperature?

• global temperature has varied (changed) over time, and carbon dioxide levels have gone down
• global temperature and carbon dioxide levels have steadily gone up over time
• global temperature has suddenly gone up, and carbon dioxide level have slowly gone up

Which gas is most responsible for the greenhouse effect on Earth?

• Oxygen

• Nitrogen

• Carbon dioxide

• Argon

What is the greenhouse effect?

• Certain gases in the atmosphere trap heat and warm the Earth
• The tilt of the Earth changes the amount of solar energy the Earth receives
• The Sun is putting out more radiant energy over time

How are greenhouse gasses harming our environment?

• Less heat is able to escape causing the Earth to cool down

• Less heat is able to escape causing the Earth to warm up

• More heat is able to escape

What does this diagram illustrate?

• Ozone Layer
• The Greenhouse Effect
• Ultraviolet Radiation
• Layers of the atmosphere

What is an indicator that the overall climate of the Earth is getting warmer?

• Ice caps melting 
• Palm trees being cut down
• Volcanos erupting
• Photosynthesis

The greenhouse effect is caused by

• more heat arriving at the Earth from the sun

• the Earth releasing more heat at night

• gases in the air trapping heat released by the Earth

 Which of the following activities contributes the most to carbon emissions globally?

• Deforestation
• Agriculture
• Burning fossil fuels
• Respiration