When a front passes over an area, it means a change in the weather. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front passes there may there may be dramatic thunderstorms. At a warm front there may be low stratus clouds.
When there is a transition zone between two different air masses at the Earth's surface.
Explanation:
Each air mass has unique temperature and humidity characteristics. Often there is turbulence at a front, which is the borderline where two different air masses comes together. The turbulence can cause clouds and storms. Instead of causing clouds and storms, some fronts just cause a change in temperature.
As a majority of soils in tropics are of the Alfisols and the Ultisols. These soils are old and have lower fertility, but due to the presence of the dry season, the nutrients can stay in place. In the tropical rain forest, most of the time have sufficient rains but the soil lacks organic matter as they fast decomposition processes.