Caves and their peculiarities
A cave is a natural cavity in the upper layer of the earth's crust, which has at least one exit to the surface. Sometimes caves are the most complicated systems…

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Tiger is the world's largest cat
Tigers are a kind of mammals that belong to the cat family. They represent fairly large, fast and strong animals, making them dangerous predators. This is evidenced even by their…

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Pollution of reservoirs
Water pollution is a serious environmental problem. Indeed, water is essential for the existence of all living organisms, including humans. But its contamination makes it impossible to use water for…

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Pandemic is an

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

– Flu is an acute infectious disease, which is the most common and most known in the world. Even in our time, it was not possible to win the pandemic. And even though the mortality of the disease is very small, the influenza still carries several hundred thousand human lives each year (no more than half a million). Continue reading

Role of rivers in nature
The river is a significant amount of water flow flowing along the channel (deepening in the earth's surface) from the source (the beginning of the river) to the mouth (the…

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The significance of ecology in our world
Ecology is called science studying the interaction of living organisms among themselves, as well as with the surrounding world. This is necessary in order to minimize the harm done by…

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