Atmospheric Composition and CO2 Solutions

The video explains the composition of the air we breathe, highlighting that it consists mainly of nitrogen, with oxygen and a small amount of CO2. It describes how exhaled air contains less oxygen and more CO2. The video also addresses the issue of CO2 accumulation in the atmosphere, primarily due to emissions from vehicles and industries, not breathing. Climeworks, the video's sponsor, offers a solution by developing CO2 capture plants powered by renewable energy to reduce atmospheric CO2 levels.

What percentage of the air we breathe is composed of oxygen?

• 21%

• 78%

• 15%

• 5%

Which gas makes up the majority of the air we exhale?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

What is the primary cause of CO2 accumulation in the atmosphere?

• Deforestation

• Emissions from vehicles and factories

• Volcanic eruptions

• Breathing

Which company is working on reducing atmospheric CO2 through renewable energy-powered capture plants?

• SolarCity

• Tesla

• Climeworks

• Greenpeace

How can individuals contribute to reducing CO2 in the atmosphere according to the video?

• By using electric cars

• By reducing plastic use

• By subscribing to Climeworks' service

• By planting trees