World ocean and its properties
The ocean covers about 70% of the surface of our planet. Thus, it is an aquatic membrane, stretched almost all over the surface of the Earth. The oceans are continuous,…

Continue reading →

Destruction of forests
Forest felling is one of the most serious problems of our time. This is true, since the value of forests in our world is very large. And this means that…

Continue reading →

Flies and their role in nature
Flies are very common flying two-winged insects. They inhabit practically all warm areas of the planet, delivering many problems to living organisms, including people. After all, flies are the carriers…

Continue reading →

having a length

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…

...

The harm and the benefit of aloe
Aloe - a family of succulent plants, numbering more than 500 species. Of course, far from all of them have medicinal properties. However, some species, common in the Russian-speaking countries,…

...