Final answer:
The average temperature in a place can change significantly with the seasons due to various factors, including geographical location, the presence of bodies of water, urban environments, and greenhouse gases, which all influence weather patterns over time.
Step-by-step explanation:
In relation to the question about why the average temperature in December is 0 degrees Celsius after falling by 29 degrees Celsius from an average of 29 degrees Celsius in July, there are several atmospheric and geographic reasons. Regarding average temperatures in places like Chicago, Illinois, these are greatly influenced by seasonal changes and geographical factors such as bodies of water and urban environments. Temperature fluctuations across seasons are quite normal and are part of the broader weather pattern that can be observed over time.
Additionally, factors such as the thermal inertia of oceans play a role in delaying temperature changes; oceans cool and heat slowly, affecting the climate of coastal and nearby regions, leading to delayed seasonal temperature peaks and troughs. Moreover, the difference in average temperatures from July to December can be influenced by greenhouse gases, predominantly water vapor, which impact the thermal balance by preventing most heat radiation from escaping directly into space.