What is it: rain?
Rain is one of the most common atmospheric phenomena. Long since people associated him with deities, and in days of drought they prayed for rain and harvest. Let's talk about what rain is, what it is like, and also consider the question of its importance to humans.
Rain is formed due to water vapor, which is concentrated in the atmosphere of the Earth. Due to the fact that the steam rises in the upper atmosphere, it begins to cool and turn into the smallest particles of water. These particles gather into clouds, which gradually increase and at some point their mass reaches the point of formation of larger droplets. Due to the fact that the mass of these drops is too large, they fall to the ground. So it rains.
More details on how the formation of rain occurs are discussed in the article How rain forms.
Types of rain
At the moment, scientists emit several types of rain:
- by duration: short, long.
- by nature: rain, drizzle, normal.
- by the nature of occurrence: mushroom or sunny snow rain, acid rain, snow.
Short-term rain is characteristic of many regions of the planet, including deserts. Its distinctive feature is the short duration of time, and short rains are often quite strong. As for the prolonged rains, they are typical for regions with a monsoon and tropical climate. Such rains can be both weak and rather heavy.
Sunny rain is characterized by the fact that during the time of precipitation the sun is not hiding behind the clouds. As for the snow rain, which in Russia is often called rain and snow, its characteristic feature is the precipitation of two types of precipitation at the same time, namely snow and rain.
Acid rain falls as a result of harmful chemical emissions into the atmosphere. Such rain can be dangerous to humans, as well as plants and animals.
The role of rain in human life
The role of rain for humanity is difficult to overestimate. At various times, people considered rain either their salvation or a curse. There were whole cults that deified the phenomenon of rain.At present, the benefits of rain, as well as its harm, are obvious. After all, rain is the guarantor of a good harvest, at the same time prolonged rain can cause flooding and destroy entire cities.