The formation of the earth was about 4.6 billion years ago. During this period, the earth did not know how many changes had taken place. Under the influence of volcanoes and earthquakes, the ocean became land, and the land may gradually become the ocean. Oceans make up 71% of the earth, while land only makes up 29%. And we’re talking about the largest freshwater lake in the world, Lake Belga, which is also the deepest lake in the world.
Lake Baikal was formed about 25 million years ago by strong earthquakes after the collision between the Indian plate and the Eurasian plate. Lake Baikal was originally in a long-term land state, and later formed a segmented Lake in the crustal fault activity. Lake Baikal is 635 meters long, The deepest part of the lake is 1637 meters, with an altitude of 455 kilometers. The total water area is 23.6 trillion cubic meters, accounting for about 20% of all the fresh water on the earth. The amount of water can be used by 5 billion people for half a century. The area of bairga lake is about two Beijing cities in China. The largest lake in China is Qinghai Lake, which covers an area of only 4583 square meters and the deepest is only 32.8 meters. Lake bairga is about 50 times as deep as it is. Scientists have found that lake bairga is expanding and may become an ocean in the future, dividing the Eurasian continent into two. Is this true?
According to the biological and geological data, the former Soviet scientist vileshagin speculated that there was a Belga sea in the east of Belga Lake in the Jurassic century. Later, due to the crustal movement, it became an inland lake. With the addition of rain and river water, the salt water gradually became lighter. However, at present, the mountains around Lake Belga are rising by 5-6 mm, and the lakeshore is also rising by about 2 mm every year. Lake Belga is getting bigger and bigger. Scientists predict that lake Belga will become the first terrestrial freshwater ocean in the future, which will divide the Eurasian continent into two parts in 20 million years. There are more than 1200 kinds of animals in Lake Belga, and there are about 600 plants on or near the surface This is incomparable with other lakes in the world. Among them, the most striking one is the freshwater seal. It has a large number and can still capture nearly 5000 seals every year. However, in 1994, the number will drop sharply. If people do not take measures, the freshwater seal will be on the verge of extinction in 5-7 years.
No matter whether Lake Belga will eventually become an ocean and divide the Eurasian continent into two, we should protect Lake Belga and protect the ecological environment of our planet.