Question:

Which of the following concept/concepts describes an urban area with ample green space and water bodies to retain rain water? 
• [A.] Sponge city 
• [B.] Industry city 
• [C.] Satellite city 
• [D.] Aerocity 
• [E.] Green city Choose the correct answer from the options given below:

Show Hint

Key features of a Sponge City:
• Rainwater harvesting
• Urban wetlands
• Permeable surfaces
• Green infrastructure Sponge cities help reduce urban flooding and improve groundwater recharge.
Updated On: May 19, 2026
  • A
  • E
  • D
  • B and C
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The Correct Option is A

Solution and Explanation

Concept: A Sponge City is an urban planning concept designed to improve rainwater absorption, storage, and reuse within urban areas. The concept focuses on:
• Increasing green spaces,
• Preserving wetlands and water bodies,
• Reducing urban flooding,
• Enhancing groundwater recharge,
• Promoting sustainable stormwater management. The city behaves like a sponge by absorbing and retaining rainwater naturally.

Step 1:
Understand the Sponge City concept.
A Sponge City includes:
• Parks and urban green belts,
• Lakes and ponds,
• Permeable pavements,
• Rain gardens,
• Green roofs and wetlands. These elements help retain and manage rainwater effectively.

Step 2:
Analyze the given options.
Sponge city -- Urban area designed to absorb and retain rainwater using green spaces and water bodies. \checkmark
Industry city -- Focused on industrial activities and manufacturing.
Satellite city -- Smaller city developed near a major urban center.
Aerocity -- Urban development centered around airports.
Green city -- General term for environmentally friendly cities but does not specifically define rainwater retention systems. Therefore, the correct answer is: \[ {A} \]
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