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totality of processes on breaking down and carrying off the products of rocks and soils into lower areas, causing a gradual leveling of a relief.

adj random, haphazard, sporadic, pattern less, scatteredrandomly, haphazardly, occasionally, intermittently, periodically, now and then, once in a while, arbitrarily, err

Diffuse pollution sources without a clearly defined coordinates of their origin. The pollutants are mainly spread on the land by rain water. Usually non-spot sources of p