Kohtla-Järve

Kohtla-Järve is a city and municipality in north-eastern Estonia, founded in 1924 and incorporated as a town in 1946. The city is highly industrial, and both processes oil shales and is a large producer of various petroleum products. The city is also very diverse ethnically: it contains people of nearly 40 ethnic groups[citation needed] and only 21% of the population are Estonians. Many ethnic Estonians in the city have adopted Russian as their primary language, although this changed in the late 1990s, as Estonian once again became the primary language used in everyday life. Kohtla-Järve is the 4th largest city in Estonia.

Area is a quantity expressing the two-dimensional size of a defined part of a surface, typically a region bounded by a closed curve. The term surface area refers to the total area of the exposed surface of a 3-dimensional solid, such as the sum of the areas of the exposed sides of a polyhedron. Area is an important invariant in the differential geometry of surfaces.[1]

The chemical industry comprises the companies that produce industrial chemicals. It is central to modern world economy, converting raw materials (oil, natural gas, air, water, metals, minerals) into more than 70,000 different products.

A city is a relatively large and permanent settlement, particularly a large urban settlement.[1][2] Although there is no agreement on how a city is distinguished from a town within general English language meanings, many cities have a particular administrative, legal, or historical status based on local law. For example, an article of incorporation approved by the local state legislature distinguishes a city government from a town in Massachusetts. In the United Kingdom and parts of the Commonwealth of Nations, a city is traditionally a settlement with a royal charter.[1] Historically, in Europe, a city was understood to be an urban settlement with a cathedral.Daylight saving time (DST; also summer time in British English—see Terminology) is the practice of advancing clocks so that afternoons have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn.[1] Modern DST was first proposed in 1895 by George Vernon Hudson, a New Zealand entomologist.[2] Many countries have used it since then; details vary by location and change occasionally.

Eastern European Summer Time (EEST) is one of the names of UTC+3 time zone, 3 hours ahead of Coordinated Universal Time. It is used as a summer daylight saving time in some European, North African, and Middle Eastern countries. During the winter, the Eastern European Time (UTC+2) is used.Eastern European Time (EET) is one of the names of UTC+2 time zone, 2 hours ahead of Coordinated Universal Time. It is used in some European, North African, and Middle Eastern countries. Most of them also use Eastern European Summer Time (UTC+3) as a summer daylight saving time.Estonia en-us-Estonia.ogg /ɛsˈtoʊniə/ (Estonian: Eesti), officially the Republic of Estonia (Estonian: Eesti Vabariik), is a country in Northern Europe. It is bordered to the north by the Gulf of Finland, to the west by the Baltic Sea, to the south by Latvia (343 km), and to the east by the Russian Federation (338.6 km).[8] The territory of Estonia covers 45,227 km2 (17,462 sq mi) and is influenced by a temperate seasonal climate.

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