In winter, during heavy snowfall, ice growths form, and in order to start the wind turbines back, they have to be warmed up by the same means that conservationists so fiercely criticize.
It turns out that today the “green energyˮ is still unreliable.
Only new, high technologies could solve this problem, for example, the development of such an industry as bionanoenergy.
But along with the pollution of the planet, there is another important problem: forest fires.
The lungs of our planet are the forests of Russia and the jungles of the Amazon River basin, which are shrinking.
Therefore, a lot of environmental problems have accumulated. But there are also hidden problems on Earth…
We already know a lot about our planet. The age of the planet according to modern data is 4.54 billion years. The birth of a planet, according to the main hypothesis, is associated with the process of mass increment by gravitational attraction of matter from a large cloud of interstellar dust and gas.
To understand more about our Earth, let’s remember the structure of the planet.
At the center of the Earth is the inner core, the radius of which is approximately 1250 km. Then the outer core is located, which mainly contains iron. The thickness of this core is about 2200 km. The next layer is the mantle, consisting of silicates and oxides. This layer is the widest and is approximately 2900 km.
And the thinnest layer is the bark.
According to scientists, the inner core of the Earth is in a solid state as a result of strong pressure, unlike the outer core, which is represented in a liquid state.
It is believed that the inner core consists mainly of nickel and iron.
The average radius of the Earth is 6371 km.
Another interesting feature is plate tectonics. Continents, oceans are our planet. But continents, as if alive, move.
It is also hard to believe that a supercontinent once existed.
The German scientist Alfred Wegener (1880-1930) called such a supercontinent that emerged in the Paleozoic era Pangea.
He noticed that the coasts of South America and Africa, separated by the Atlantic Ocean, have an amazing similarity. The scientist also drew attention to the flora and fauna of both continents.
Based on these and other scientific data, Alfred Wegener proposed the theory of slow continental drift. The essence of this theory is that due to the movement of the Earth's mantle, the continents are drifting.