Chemistry - part of our lives, and without certain processes that occur on Earth before life began, of course, it would not be us. The assimilation of food, human and animal respiration is based on chemical reactions. The same process of photosynthesis, without which people can not live, is also accompanied by chemical processes.Few people think that ignites a match, that carries out this complicated chemical process. Or, for example, personal hygiene is also accompanied by chemical reactions when a person uses soap that foams in contact with water. The same wash using powders, conditioners for softening the laundry accompanied by such reactions.Even in ancient times were common craft, which were based on chemical processes: for example, the creation of ceramics, metal processing, the use of natural dyes.hus, the chemistry of life - this is a panacea for the disease, and weapons, and the economy, and cooking, and, of course, life itself.
The term "etiquette" means the form, a manner of behaviour, the courtesy and politeness rules accepted in this or that society. Etiquette bases are simple enough. It: a standard of speech which assumes not only its grammatical and stylistic correctness, but absence of vulgar words, obscene expressions, hesitation words and elementary politeness which assumes ability to greet, say goodbye, speak "please", "be so kind as", "be kind", "excuse", to thank for the help, service, to wish good night, kind morning, good appetite, health and so forth The great value for dialogue of people has their appearance, the clothes, ability correctly to behave in public places, in various situations. The favorable impression is made well, with taste by the dressed polite person, which knows how to keep in any circumstances, and always behaves accordingly.
Объяснение:
I was ill last week.
They were so happy to see me.
He had a nice time in summer.
We did not play football yesterday.
He has got a dog.
The meeting went on for hours and hours.
She took the telephone.
He gave them what they asked for.
She made a gift.