Termez state university “Interfaculties English chair”

3. Make up a story on the theme: “London”.


Key words: political, economic, commercial, the world, population, Traditionally, several, each other, financial, business, banks, masterpieces, century, a fortress, a palace, a prison, aristocratic official, stretching, nearly, along.
Head of the chair: Kudratov G.S

TERMEZ STATE UNIVЕRSITY

«INTERFACULTIES CHAIR OF THE FOREIGN LANGUAGES»
THE FINAL STATE ATTESTATION VARIANT
FOR THE DEPARTMENT OF CHEMISTRY
VARIANT № 25


1. Read and translate the text on specialty in written form:


WATER.

Water is a compound substance which consists of two elements - hydrogen and oxygen.

Water is widely distributed in nature in its three states of aggregation - steam or aqueous vapour, liquid water, and solid ice or snow. At ordinary temperature pure water is a tasteless, odourless and colourless liquid. Water boils at 100° under 760 mm pressure. Liquid water freezes at O°C into crystalline ice. About three quarters of the earth's surface is covered with liquid water. In vapour form, water is also an important constituent of the earth's atmosphere. In combined form, water also occurs in animals and vegetable tissues. It constitutes some 70 per cent of the human body and over 90 per cent of some vegetables. Water for drinking and domestic purposes is generally supplied by rivers, lakes, wells and springs. Such waters commonly contain salts of calcium, iron, magnesium, potassium and sodium, organic matters from falling leaves and twigs; and traces of carbon dioxide, oxygen, nitrogen, ammonia, and other gases from the atmosphere. There is also a variety of suspended matter in natural water such as fine particles of clay, sand, microscopic organisms including bacteria and fragments of vegetation. Waters having appreciable amounts of dissolved salts are always more acceptable for drinking than those free from solids. But good drinking water must be free from toxic salts, disease producing organisms.