What affects the humidity levels in Mississippi?

Humidity levels in Mississippi are significantly influenced by its proximity to bodies of water, such as the Gulf of Mexico, as well as the abundance of vegetation in the region. The Gulf of Mexico serves as a source of moisture, which evaporates into the air and increases humidity levels, especially during warmer months. Also, vegetation contributes to humidity through a process called transpiration, where plants release water vapor into the atmosphere, further elevating humidity in the area. The combination of these factors results in a humid subtropical climate typical of Mississippi, characterized by high humidity levels, particularly in summer.

In contrast, the other factors listed are less relevant to Mississippi's humidity. For instance, altitude and mountain ranges play a minimal role in this region, as Mississippi has a relatively flat landscape without significant elevation changes that would typically influence humidity. Industrial emissions can contribute to air quality but do not have a direct effect on humidity levels. Similarly, desert landscapes are not present in Mississippi and would not contribute to its humid climate; rather, they would typically demonstrate low humidity levels due to the lack of moisture sources.