"Building crescent shaped earthen embankment in level terrain is better than the construction of large dams across the river to store water". Analyse this statement with their effects.

Explanation

• ln terrain, the crescent shaped embankments are used as water harvesting structures. They are advantageous as :
• The water in them do not evaporate easily.
• They help in recharging wells and providing moistwe for vegetation over a long stretch of land.
• They do not allow mosquitoes to breed.
• Such embankments are also protected from animals and human waste.
• Harnessing of water by building dams has its own social, economic and environmental problems.
• Soda! : As many displace large number of peasants and tnbals without adequate compensation and rehabilitation.
• Economic : Huge amount of public money is used.
• Environmental: They lead to deforestation.
Thus, the statement is justified