introduction of rainwater harvesting
Answers
Answer:An Introduction to Rainwater Harvesting. ainwater harvesting is a technology used for collecting and storing rainwater from rooftops, the land surface or rock catchments using simple techniques such as jars and pots as well as more complex techniques such as underground check dams.
Explanation:
•Question•
"Rain water harvesting"
•Answer•
★Rainwater harvesting (RWH) is the collection and storage of rain, rather than allowing it to run off.
★The harvested water can also be committed to longer-term storage or groundwater recharge.
•Causes•
★Large dams are the major source of water storage, and canals are the major distributory route. The former have caused large-scale community displacement and ecological havoc.
★The latter, large-scale degradation of land via soil salinisation. Groundwater resources have been heavily over-used.