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External skeleton. Its functions and features in various animals
External skeleton. Its functions and features in various animals

When the word "skeleton" is heard, we usually immediately imagine a bare skull and spine, connected by many different bones. It really is, but not in all organisms on our planet. Many animals have an external skeleton. How it looks and what functions it performs, you will learn further

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Oxides. Examples, classification, properties
Oxides. Examples, classification, properties

Practically all elements of the periodic system of Mendeleev can form oxides, or oxides - binary compounds containing oxygen atoms in their molecules. The class of these inorganic compounds, in turn, is divided into several groups: basic, acidic, amphoteric and indifferent oxides. The purpose of our article is to study the physical and chemical properties of oxides, as well as their practical application and significance for humans

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  • Bosphorus - a strait at the junction of the continents
    Bosphorus - a strait at the junction of the continents

    The magnificent and unique city of Istanbul, the capital of the Turkish state, is located right at the junction of two continents. And between them is the famous Bosphorus - the strait, which is one of the wonders not only of Istanbul, but of the whole of Turkey. This amazing place can be safely called the heart of the city. Tourists from all over the world come here to admire the beauties of the city, take a walk along the outskirts of the strait or sail through it on a boat

  • Explosive gas - good or bad? Composition, formula, application
    Explosive gas - good or bad? Composition, formula, application

    At the beginning of studying such a subject as chemistry, the most interesting thing is to conduct experiments, and if these experiments are also accompanied by a small spectacular explosion, then it is generally difficult to contain the delight. At the word "explosion" various associations arise, and one of them is explosive gas. What formula does it have, where it is used and, of course, safety rules when working with it are the main issues of the article

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English pronouns with translation: table. The role of pronouns in English
English pronouns with translation: table. The role of pronouns in English

The article explains what a pronoun is and why it is needed in English, and also reveals in detail 8 types of pronouns: personal, possessive, demonstrative, relative, interrogative, indefinite, reflexive, mutual

  • Self-learning English from zero to A2 level

    One of the modern studies of psycholinguists proves that while learning a new language, a kind of subpersonality is formed in a person. We don't just acquire another perceptual filter. Learning a new way of thinking changes us fundamentally

  • How to start learning English and how to achieve good results: a few recommendations

    Over the past two decades, many of our fellow citizens have often wondered where to start learning English. This need is dictated by time itself

  • Modal verbs in German: usage nuances

    All modal verbs in German can be divided into groups: I can, I must, I want. Each of them has two verbs. Let's look at them in that order

  • "Why are you silent?" - "Silence is golden"

    It is known for certain that in the days of Ancient Greece, everyone who wanted to study at the school of Pythagoras was asked to spend the first two years in silence. "For what?" - you ask. Silence is golden. Silence is silence not only around you, but also within you. When the "ego" rests, the voice of the soul is heard - our divine principle