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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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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Salvia officinalis
Medicinal sage is a grassy plant of the genus Salih. Its name, as you can guess, received this form for the medicinal properties that it possesses. Medicinal sage does not…

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kind of mammals

Types of microorganisms and their significance
Microorganisms are a group of so small living organisms that they are not visible by human vision. Their size is less than 1 millimeter, and, sometimes, much less. Although there…

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Belladonna, or Beauty
Belladonna is a poisonous plant used in the Middle Ages for cosmetic purposes. Due to what else its name appeared - Krasavka. And because of its influence on people, it…

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