Question

In the Northern Hemisphere, climate scientists observe seasonal fluctuations in carbon dioxide concentration with the highest levels measured in May and the lowest in October. Hypothesize how photosynthesis can account for these fluctuations. Explain your answer in three to five sentences.

A) Photosynthesis in May increases CO2 levels
B) Photosynthesis in May decreases CO2 levels
C) Photosynthesis in October increases CO2 levels
D) Photosynthesis in October decreases CO2 levels

Answer 1

Photosynthesis can account for the seasonal fluctuations in carbon dioxide concentration in the Northern Hemisphere. During the spring and summer months, when photosynthesis is more active, carbon dioxide levels decrease. Conversely, during the fall and winter months, when photosynthesis is less active, carbon dioxide levels increase.

Step-by-step explanation:

The seasonal fluctuations in carbon dioxide concentration in the Northern Hemisphere can be explained by the process of photosynthesis. Photosynthesis is the process by which plants absorb carbon dioxide from the atmosphere and convert it into glucose and oxygen.

During the spring and summer months, when the days are longer and temperatures are warmer, plants carry out more photosynthesis, leading to an increase in carbon dioxide absorption and a decrease in atmospheric levels. In contrast, during the fall and winter months, when the days are shorter and temperatures are cooler, photosynthesis decreases, resulting in lower carbon dioxide absorption and higher atmospheric levels.