New: terrain-modelAll contenthive-129948hive-196917krsteemzzanhive-166405hive-183959hive-180932hive-185836photographyuncommonlabhive-183397hive-144064hive-150122hive-101145krsuccessbitcoinhive-145157hive-188619hive-184714hive-193637hive-103599hive-139150hive-180301hive-165987TrendingNewHotLikersdeputt (41)in chemicals • last yearMore Or No ChemicalsIf a river is polluted by industrial wastes, do we; A. Pour in more chemicals to clear it up. B. Stop the source of the pollution. #terrain-model #terrain-theory