In the Northern Hemisphere, climate scientists observe seasonal changes in carbon dioxide concentration with the highest levels measured in May and the lowest levels measured in October. Hypothesize how photosynthesis can affect these changes. Explain your answer in three to five sentences. (Remember: 1. Leaves, in the Northern Hemisphere, appear on trees in the Spring and fall from trees in the Autumn. 2. Leaves are where photosynthesis occurs. 3. How does photosynthesis effect carbon dioxide?)(4 points)
During the Spring in the Northern Hemisphere, trees begin to grow new leaves, which increase the surface area available for photosynthesis. This enhanced photosynthetic activity leads to a higher rate of carbon dioxide absorption from the atmosphere, thus reducing its concentration. Additionally, the increased foliage acts as a sink for carbon dioxide, as it is stored within the leaf tissues during photosynthesis. In contrast, during Autumn, leaves fall from the trees, reducing the available surface area for photosynthesis. Consequently, the rate of carbon dioxide absorption decreases, resulting in higher concentrations in the atmosphere.
