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landscape split in sharp and complex manner, area of low hills consisting from the complicated narrow branching watersheds; difficult for cross-walking as well as unsuitable for agriculture.

deterioration of a state of ecosystems caused by exterior (exogenic) or interior (endogenic) reasons.

surfactant active synthetic matters used in housekeeping and industry as detergents or emulsifiers. D. — one of the basic groups of water pools contaminating substances.

a term used recently for definition of not disturbed nature areas, not disturbed by human and economic activity.

alternate strategy of control over discharges under which those who two or more point-sources of impurities are considered as though they housed into one volume that allows to reduce a total outburst of a considered pollutant, instead of its outburst on each point-source. Enterprises obtaining a permit to apply B. p. can save resources reducing discharges on those spot-sources where it costs cheaper.

discharge, burial of wastes in ocean and its seas.