The pond looks green due to excessive growth of:

Options

A. Fungi
B. Algae
C. Bacteria
D. Pathogens

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks why a pond appears green. This indicates that we need to identify the cause of the green color in the water.

2. **Identifying the Cause:**
The green color in ponds is primarily due to the presence of certain organisms. In this case, we need to focus on what type of organism causes this phenomenon.

3. **Recognizing the Organism:**
The organism responsible for the green color in ponds is algae. Algae are simple, typically aquatic organisms that can photosynthesize and are often found floating on the surface of water bodies.

4. **Explaining the Growth of Algae:**
Algae can grow rapidly, especially in nutrient-rich waters. When there is an excessive amount of nutrients (like nitrogen and phosphorus), algae can proliferate quickly, leading to a phenomenon known as algal bloom.

5. **Conclusion:**
Therefore, the pond looks green due to the excessive growth of algae.

**Final Answer:**
The pond looks green due to excessive growth of algae.

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