White shark is a dangerous predator
White shark is a species of large predatory fish. And although they are best known for this name, there are others. So, the full name of these fish is Big…

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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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WWF - World Wildlife Fund
The World Wildlife Fund (WWF) is one of the largest independent international public organizations engaged in the conservation and restoration of the environment. Its main goal is to maintain the…

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causes physical

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 point of entering another reservoir). The river collects its waters due to surface and underground drains. Basically, as a result of precipitation. Therefore, in the dry seasons, the channel can dry up, and in rainy, on the contrary, overflow. The floodplain part of the river valley is called floodplain. Continue reading

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, and wash areas of land on all sides, be it continents, or islands.

The ocean on the map
The author of the photo is Link576, the link to the original (photo has been changed).
Parts of the world ocean Continue reading

Cultivated plants of our planet

Crop plants are those plants that are grown by humans for eating, feeding animals, receiving medicines or raw materials, etc. All these plants are also called agro-crops.

Barley
Classification

1. Grain crops. They are also called grasses. They are very important for a person, since they make up his basic diet. In addition, cereals are used as feed for animals, and also used in production. In general, cereals are very important. Plants such as wheat, rice, barley, oats, corn, buckwheat, rye and many others enter this group. Continue reading

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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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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