Frogs and their significance
Frogs are a group of very common animals, in which you can include, as well as all non-tailing amphibians, and only representatives of the real Frog family. Usually, under the…

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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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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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includes hundreds

Environmental organization Greenpeace

Greenpeace (translated as “green world”) is an international environmental organization. It is one of the largest and most famous in the world, and has been protecting the environment for almost half a century (the foundation year of 1971). Greenpeace includes hundreds of thousands of active people, and millions of people around the world support them (and more than 3 million donate). Continue reading

Cranberry is a medicinal plant
Cranberry is a group of evergreen stellate shrubs growing on the bogs of the Northern Hemisphere of the Earth. These plants are valued for their edible fruits - cranberry berries.…

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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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