Isolating human activities to specific and limited areas would definitely help in reducing pollution to some extent. For example,
(i) If sewage and garbage generated by homes and industries is treated properly before discharging into water sources, it will reduce water pollution and cause less harm to the aquatic life.
(ii) If hot water generated by the industries is collected at commonplace, allowed to cool and then discharged in water bodies, will not affect the breeding capacity of aquatic organisms.
(iii) If commercial areas, factories and industries are shifted to the isolated are a far away from residential areas, it can reduce the effect of air pollution on people.