DSST Environmental Science Practice Exam

The two major forms of air pollution in industrial areas primarily arise from motor vehicles and industrial processes. Vehicle emissions contribute significantly to air pollution due to the combustion of fossil fuels, leading to the release of nitrogen oxides (NOx), carbon monoxide (CO), volatile organic compounds (VOCs), and particulate matter. Similarly, industrial processes are a major source of air pollutants, as factories and manufacturing plants release pollutants such as sulfur dioxide (SO2), heavy metals, and other harmful chemicals into the atmosphere as part of their operations.

This combination results in significant environmental and health consequences, including respiratory problems, cardiovascular diseases, and ecological damage. Addressing these pollution sources typically involves implementing stricter regulations on emissions, promoting cleaner technologies, and improving public transportation systems to reduce reliance on motor vehicles.

Other options, while related to environmental issues, do not specifically focus on industrial air pollution. Mining and deforestation alter land use but do not primarily contribute to air pollution in the same direct manner as motor vehicles and industrial processes. Agriculture and residential heating can introduce pollutants, but they are not the main contributors in industrial contexts. Similarly, commercial transportation and household emissions do affect air quality, but they are less significant than the combined impact of motor vehicles and industrial activities in industrial areas