Which water source refers to water collected from precipitation and stored for later use in irrigation?

• A. Wells
• B. Rainwater
• C. Streams
• D. Stormwater

Answer: (B)

Rainwater refers to water that comes from precipitation and is captured and stored for later irrigation. This water is collected from rainfall, often via roof catchments or other collecting surfaces, and stored in tanks, cisterns, or ponds for use when irrigation is needed. It’s a distinct source because it is intentionally captured ahead of time from the weather event, rather than being drawn from underground groundwater or from streams, which are ongoing sources. Stormwater is also rainfall-derived, but it’s runoff that is typically managed to prevent drainage problems and may require treatment before reuse, whereas rainwater harvesting focuses on capturing and storing water for future use. Rainwater harvesting helps conserve other water supplies and can provide a reliable supply during dry periods, though its availability depends on local rainfall and it may need filtration or treatment depending on the collection method.