One of the following type of trees are said to help in purifying wastewater quite rapidly when planted all along the sewage ponds . These are:

Options

A. eucalyptus trees
B. ficus trees
C. neem trees
D. peepal trees

Answer

**Step-by-Step Solution:**

1. **Identify the Purpose of the Trees**: The question asks about a type of tree that helps in purifying wastewater when planted around sewage ponds.

2. **Consider the Options**: The question implies that there are multiple options, but we need to focus on the one that is known for its wastewater purification abilities.

3. **Recall Information about Eucalyptus Trees**: Eucalyptus trees are known for their height and evergreen nature. They have a specific role in environmental management, particularly in wastewater treatment.

4. **Understand the Mechanism of Purification**: Eucalyptus trees absorb excess wastewater and release pure water vapor into the atmosphere. This process helps in reducing the amount of wastewater and purifying it rapidly.

5. **Conclude the Correct Answer**: Based on the information provided, the type of tree that helps in purifying wastewater quite rapidly when planted around sewage ponds is the Eucalyptus tree.

**Final Answer**: Eucalyptus tree

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