How.......... rivers are polluted؟
إجابة الطالب المختصرة من خلال موقع بوابة الإجابات هي
many
Rivers are polluted in many ways, often as a result of human activity. Here are some common causes:
* **Industrial Waste:** Factories may discharge harmful chemicals, heavy metals, and other pollutants directly into rivers.
* **Agricultural Runoff:** Fertilizers and pesticides used in farming can be washed into rivers by rain, causing nutrient pollution and harming aquatic life.
* **Sewage and Wastewater:** Untreated or poorly treated sewage contains bacteria, viruses, and other pathogens that can contaminate rivers and make them unsafe for drinking or recreation.
* **Urban Runoff:** Rainwater flowing through cities can pick up pollutants from streets, parking lots, and construction sites, such as oil, chemicals, and debris.
* **Mining Activities:** Mining operations can release toxic chemicals and sediment into rivers, polluting the water and harming aquatic ecosystems.
* **Deforestation:** The loss of trees and vegetation can lead to soil erosion, which increases sediment pollution in rivers.
* **Plastic Pollution:** Plastic waste can enter rivers through littering and improper waste disposal, harming wildlife and degrading water quality.
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