All preferences are stored on your device.
2014
It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.
Oil and gas, as the main levers of economic prosperity of the republic, are the main sources of pollution of the environment (air, water, soil, etc.). For the extraction, transportation, processing and use of energy resources as its presence is observed on the surface of the earth. Major oil and gas reserves according to geological data are concentrated in the west of Kazakhstan, more precisely in the Caspian lowlands, including at the bottom of the Caspian Sea.