Exposure therapy was used by psychiatrists in South Altica in the 1950s.

2 My school is holding a seminar about stress and phobias.

3 Gulnara friends offered help

with her problems. 4 The pharmacy was

advertising new tablets for

insomnia. 5 Dr Williams diagnoses lots of cases of arachnophobia every year.

6 Brave visitors can see venomous snakes in the 200's poisonous creatures enclosure

7 People will always remember frightening experiences from their childhood

8 Two to five percent of the world's population have experienced a fear of heights.

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.

1.When Mendeleev developed the periodic table, many elements had not yet been opened.2.Russian chemical society was founded in 1868 3.The zero group was added to the periodic table after the discovery of inert gases.4.Mendeleev's predictions were justified by the subsequent discovery of new elements.5.Helium, neon, argon, krypton and xenon were discovered in 1894 and in subseChemical properties indicated a violation of the order in several places in the table.quent years.7.Chemical properties indicated a violation of the order in several places in the table.8.Mendeleev predicted the existence of six elements