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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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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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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to the family

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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Viruses and viral diseases
The virus is an infectious agent that does not have a cellular structure, and is capable of reproducing only within cells of living organisms. For this they are referred to…

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