Question

C. Scientists have been monitoring the concentrations of the most abundant greenhouse gas,

carbon dioxide, for many years. Initially they noticed seasonal patterns; what caused these seasonal
patterns?
D. What have scientists leaned by comparing greenhouse gas concentrations in ice cores (back to

Answer 1

The seasonal patterns in carbon dioxide concentrations are caused by variations in photosynthesis and respiration rates in plants and algae.

Step-by-step explanation:

The seasonal patterns in carbon dioxide concentrations are mainly caused by variations in photosynthesis and respiration rates in plants and algae.

During the warmer months, plants and algae undergo photosynthesis, which is the process of converting carbon dioxide into oxygen and glucose. This leads to a decrease in carbon dioxide concentrations in the atmosphere.

On the other hand, during colder months, plants and algae enter a dormant state and the rate of photosynthesis decreases. At the same time, the rate of respiration in plants and animals remains relatively constant. As a result, carbon dioxide concentrations in the atmosphere tend to increase during winter.

Learn more about Seasonal patterns in carbon dioxide concentrations