The atmosphere is currently composed of 21 oxygen and 0 03

Last updated: 5/16/2023

The atmosphere is currently composed of 21 oxygen and 0 03 carbon dioxide Photosynthesis cellular respiration and other processes such as fossil fuel combustion combine to create the composition of the atmosphere Answer the following questions 4 marks 1 Answer 8 marks 2 Answer 3 marks 3 Answer How do the levels stay balanced as a constant percentage Explain in terms of gas exchange in photosynthesis and cellular respiration List four factors that could affect the current oxygen and carbon dioxide levels and then predict possible effects if the levels changed Be sure to provide clear and reasonable answers The percentage for carbon dioxide 0 03 seems like such a small number How can changes in this percentage be a factor in climate change