What is a riol?

A riol is a type of small river or stream, typically found in tropical regions. Riol is a term used in the Indian subcontinent to describe a small waterway that flows through a village or rural area. Riol waters are often used for irrigation, drinking water, and other agricultural purposes. These water bodies are important for sustaining local ecosystems and providing water resources for communities living nearby. Riol's water quality and flow can vary depending on seasonal changes and human activity in the surrounding areas.