What is the term for the opening used to drain out excess water in lakes and ponds after they are full?a)Weirb)Damc)Kalingald)Reservoir

Break Down the Problem

1. Identify the purpose of the opening for draining excess water.
2. Evaluate each option provided.

Relevant Concepts

• Weir: A barrier across a river designed to alter its flow characteristics, often used for measurement or drainage.
• Dam: A structure built to hold back water, usually creating a reservoir or preventing flooding.
• Kalinga: This term is not commonly associated with water management in a clear context.
• Reservoir: A storage space for water, often created behind a dam.

Analysis and Detail

1. A weir, being specifically designed for managing water flow and drainage, fits the criteria of the question as it is used to drain excess water from lakes and ponds when they exceed their capacity.
2. A dam primarily retains water rather than draining it out, which is contrary to the function described.
3. Kalinga does not appear relevant to the question or water drainage concepts.
4. A reservoir is designed for storage, not specifically for drainage.

Verify and Summarize

• Upon evaluation, the correct answer is "a) Weir" as it serves the purpose of draining excess water effectively.

Final Answer

The correct term for the opening used to drain out excess water in lakes and ponds after they are full is a) Weir.