Pandemics (mass epidemics)
Pandemic is an epidemic that is massive in nature. That is, an epidemic that can spread across territories of many can hit entire continents.countries that The most famous pandemics -…

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Plain roach
Roach is a very common fish belonging to the family of carp. Other names of this species - vobla, ram, chebak, squire, fence. And it has such a large variety…

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The importance of swamps in nature
The swamp is a part of the earth's surface, which has excess moisture, high acidity and low soil fertility, which is the consequence of raising the ground water to the…

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quite dangerous

The structure of the mountains and their classification
Mountains are uneven parts of the land, rising steeply over the adjoining areas of 500 meters or more. They can have different shapes, drawings, size. Because of what they are…

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The atmosphere of the building
The Earth's atmosphere has a number of layers that differ in their various properties: temperature, pressure, height, composition, etc. Troposphere The area of ​​the atmosphere extending from the surface of…

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