Final Answer:
According to the textbook, China, India, and Russia are highlighted as some of the world's most polluted places due to various environmental factors and human activities.
Step-by-step explanation:
The identification of China, India, and Russia as among the world's most polluted places aligns with the global concern over air and water quality, industrial emissions, and unsustainable practices. China, as a rapidly industrializing nation, has faced significant challenges related to air pollution, particularly in major urban centers. India, with its growing population and industrial development, has grappled with air pollution, water contamination, and inadequate waste management. Russia, due to historical industrial practices and environmental policies, has areas with high pollution levels, impacting ecosystems and public health.
In China, the rapid pace of industrialization and urbanization has led to increased emissions of pollutants, contributing to smog and particulate matter in the air. India faces challenges such as vehicular emissions, industrial discharges, and inadequate sanitation practices, resulting in pollution of air and water resources. Russia's industrial legacy, especially in regions like Norilsk and Dzerzhinsk, has left a lasting impact on the environment, with elevated levels of pollutants affecting both local ecosystems and the health of residents.
Addressing the pollution challenges in these countries requires comprehensive strategies, including regulatory measures, technological advancements, and public awareness campaigns. The global community recognizes the need for collaborative efforts to mitigate the impact of pollution, as it transcends national boundaries and affects the health and well-being of people worldwide.