Chemistry Climate Change

What is the direct cause of rising sea levels?

• Melting Sea Ice

• Melting Land Ice

• Climate Change

Floating sea ice melts...

• and causes sea levels to rise because it adds water to the ocean.

• but does not cause sea levels to rise because the ice displaces the same amount of ocean water as the melted ice would displace.

Melting land ice...

• causes sea levels to rise because it adds water to the ocean.

• does not cause sea levels to rise because the water fills the space left by the melted sea ice.

Possible human solutions for limiting global warming and climate change are...

• being more energy-efficient

• using renewable sources of energy

• removing carbon from fossil fuel emissions

• all of the above

MAIN greenhouse gas responsible for Climate Change is:

• nitrogen

• carbon

• carbon dioxide

• methane

Which natural process removes carbon dioxide from the atmosphere?

• forest fires

• volcanic eruptions

• cellular respiration

• photosynthesis

T/F - The amount of carbon dioxide CO2 in the atmosphere is decreasing.

• True

• False

Which human activity contributes the MOST carbon dioxide to the atmosphere?

• fishing

• farming

• breathing

• burning fossil fuels

What are greenhouse gases?

• gases that cause climate change
• gases that emit green smoke
• gases that are used to make green colored glass

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