Identify the minerals that are found in run-off water?

Options

A. Nitrogen and phosphorous
B. Nitrogen and carbon
C. Carbon and phosphorous
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Run-off Water**: Run-off water refers to water that flows over the ground surface and eventually enters water bodies. This water can carry various substances, including minerals, from the land.

2. **Identifying Common Minerals in Run-off Water**: The minerals commonly found in run-off water include nutrients that are often used in agriculture. The two primary minerals that are typically present in excess amounts in run-off water are nitrogen and phosphorus.

3. **Sources of Nitrogen and Phosphorus**: These minerals often come from agricultural practices, such as the use of fertilizers. When it rains, excess fertilizers can wash off the land and into nearby streams, rivers, and lakes.

4. **Understanding Eutrophication**: The presence of high levels of nitrogen and phosphorus in water bodies can lead to a process called eutrophication. This process results in the overgrowth of algae, known as algal blooms, which can deplete oxygen in the water and harm aquatic life.

5. **Conclusion**: Based on the information gathered, the correct identification of minerals found in run-off water is nitrogen and phosphorus.

**Final Answer**: The minerals found in run-off water are Nitrogen and Phosphorus.

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