Chemisty of the Atmosphere

1. Composition of the Atmosphere:

• The Earth’s atmosphere is primarily composed of nitrogen (78%), oxygen (21%), and trace amounts of other gases, including argon, carbon dioxide, and water vapor.

2. Greenhouse Effect:

• Greenhouse gases (e.g., carbon dioxide, methane) trap heat in the Earth’s atmosphere, contributing to the greenhouse effect.
• Human activities, such as burning fossil fuels, increase the concentration of these gases, leading to enhanced global warming.

3. Air Pollution:

• Air pollution is caused by the release of pollutants into the atmosphere, including sulfur dioxide (SO2) and nitrogen oxides (NOx) from burning fossil fuels.
• These pollutants can lead to acid rain, respiratory issues, and environmental damage.

4. Ozone Depletion:

• The ozone layer in the stratosphere protects life on Earth from harmful UV radiation.
• Human-made substances like chlorofluorocarbons (CFCs) contribute to ozone depletion, leading to the formation of the ozone hole.

5. The Nitrogen Cycle:

• Nitrogen gas (N2) makes up a significant portion of the atmosphere.
• Nitrogen-fixing bacteria convert N2 into forms that plants can use, and the nitrogen cycle involves various processes like nitrification and denitrification.

Can you answer the worksheet on chemistry of the atmosphere or do you need help?