Correct option is D
Dholavira, one of the prominent cities of the Indus Valley Civilization, located in present-day Gujarat, provides significant evidence of advanced water conservation techniques. Excavations at Dholavira revealed an intricate system of water reservoirs and channels, which were used to collect and store water, particularly during the monsoon season. These water management systems were crucial for maintaining a supply of potable water in an arid region.
Key features of Dholavira's water conservation system include:
Large water reservoirs, some of which were cut into the rock, capable of holding thousands of liters of water.
A system of interconnected channels for diverting rainwater into reservoirs.
Stepwells for accessing water from the reservoirs.
Dholavira's water management system highlights the advanced engineering skills of the Indus Valley Civilization and their ability to adapt to environmental challenges.