Which of the following is not an example of point source pollution?
A pipe discharging chemicals into a river
A factory emitting smoke through a smokestack
Runoff from agricultural fields carrying fertilisers into a nearby lake
A sewage treatment plant releasing treated water into the ocean
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Which of the following is not an example of nonpoint source pollution?
Runoff from urban streets carrying oil and heavy metals
Fertiliser runoff from agricultural fields
Wastewater discharge from a factory
Sediment runoff from construction sites
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Study the data below and answer the following questions:
Region | Type of Pollution | Pollution Concentration (ppm) | Area (km2) | Population (millions) |
Region A | Terrestrial | 5 ppm | 500 | 2 |
Region A | Aquatic | 3 ppm | 500 | 2 |
Region B | Terrestrial | 1 ppm | 1000 | 5 |
Region B | Aquatic | 8 ppm | 1000 | 5 |
What is the pollution density (ppm per km2) for terrestrial pollution in Region A?
0.01 ppm/km2
0.001 ppm/km2
0.016 ppm/km2
0.008 ppm/km2
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Study the data below and answer the following questions:
Region | Type of Pollution | Pollution Concentration (ppm) | Area (km2) | Population (millions) |
Region A | Terrestrial | 5 ppm | 500 | 2 |
Region A | Aquatic | 3 ppm | 500 | 2 |
Region B | Terrestrial | 1 ppm | 1000 | 5 |
Region B | Aquatic | 8 ppm | 1000 | 5 |
Which region shows the highest pollution density (ppm per km2) for aquatic pollution?
Region A
Region B
Both regions have the same aquatic pollution density
Cannot be determined from the data
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