An increase in which human activity would most likely cause the most air pollution?
A. burning newspapers
B. driving automobiles
C. grilling food
D. irrigating crops
B. driving automobiles.
Which phase defines soil?
A. the crops that are grown in dirt
B. the decayed remains of plants and animals
C. a material made of air, organic material, water, and weathered rock
D. any region that is able to grow grass and other plants
C. a material made of air, organic material, water, and weathered rock.
To determine which human activity would most likely cause the most air pollution, we need to evaluate the potential pollutants emitted by each activity. Here is a breakdown of each activity and its associated air pollution:
A. Burning newspapers: Although burning newspapers can release some pollutants, such as carbon dioxide and particulate matter, the scale of this activity is generally smaller and less common compared to other options. As a result, the air pollution caused by burning newspapers is generally not as significant as other activities.
B. Driving automobiles: Out of the options provided, driving automobiles is widely recognized as a major source of air pollution. Vehicles emit pollutants such as nitrogen oxides (NOx), carbon monoxide (CO), volatile organic compounds (VOCs), and particulate matter (PM). The combustion of fossil fuels in car engines contributes significantly to air pollution, especially in urban areas with heavy traffic.
C. Grilling food: While grilling food can release pollutants, such as carbon monoxide, volatile organic compounds, and smoke, the extent and duration of this activity are typically limited to specific events or occasions. Therefore, the overall contribution of air pollution from grilling food is often lower than other more widespread activities.
D. Irrigating crops: Irrigating crops does not directly release air pollutants. However, some air pollution may indirectly result from agricultural practices, such as the use of fertilizers or pesticides. These substances can contribute to air pollution when they are carried off by rainwater or wind, contaminating nearby air or water sources.
Considering the above information, the option that would most likely cause the most air pollution is B. driving automobiles. The heavy reliance on internal combustion engines in vehicles across the world makes this activity a major source of air pollution in many urban areas.