Identify two factors that have changed the relationship between people and their environment resulting in the production of pollution

1. Technology
2. Industrialisation

Upward urban growth will increase pollution as the number of people will increase. The increase in population and obstruction of free movement of air because of upward urban growth will result in a "heat island". Since the number of inhabitants is going to increase with upward urban growth, waste management will also become an issue.

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