Gu' an is what I mean.

Thunderstorm (thunderstorm) is a weather phenomenon, which shows huge cloud movement, instead of violent showers, accompanied by discharge, and is common in summer. When a thunderstorm comes, there are often strong winds and thunderstorms. The wind blows sand and stones, overturning roofs and knocking down walls. It's stormy, and things dancing with the wind in the street and trees flying everywhere are even uprooted.

The water surface evaporates faster in summer than in winter and spring. The reason why the air is close is that the ground with higher temperature can accept more water vapor, resulting in lower air density, lighter air rising and lighter air rising. With the increase of altitude, the temperature will gradually drop (0.6 degrees per 100 meters), and the air will gradually cool down. The air is cold, it can't satisfy the abundant water vapor, and the water vapor will condense into a small part of water droplets, and the sky is a cloud. So, how did the rain drop these small drops quickly? This is because the water droplets are too small, and the rising hot air lifts them up, suspending a small water droplet in a higher place and continuing to push. Larger and higher clouds are piling up. This kind of cloud is called cumulonimbus weather, and it is about 1000 meters above the ground.

In the process of cumulonimbus clouds, the constantly colliding water droplets merge into larger water droplets and start to fall, while the hot air from the ground rises, just rising red, and after charging, the friction between the two. The positively charged and negatively charged liquid drops in the updraft. As time goes on, cumulonimbus clouds that produce a lot of positive charges accumulate at the top and a lot of negative charges at the bottom. Cumulonimbus clouds are positively charged and negatively charged.

The water droplets in the cloud merge and increase until the rising hot airflow cares about life and falls straight from the cloud. In order to reduce the hot air brought by the heavy rain, Zhou Ran felt cold, so he stopped rushing up and fell to the ground. At this time, the air began to charge and discharge, accompanied by thunderous thunder. Because the speed of light is 30 million m/s and the speed of sound is 33 1 m/s, people first see lightning and then hear thunder. Sometimes the delay is very long, it is the reflection of clouds, mountains and land, because of the limelight.

The hotel is in China, and thunderstorms are mostly in the bad weather of temperature and humidity from May to August. In Asia and China, environmental pollution is more serious. Now, I hope we can protect the environment.