Statement: Should government make it mandatory to make rooftop rainwater harvesting for every builder in the city? Arguments : I. Yes, in a scientific study, it has been established that we can capture and recharge 65,000 liters of rainwater in Delhi from a 100-sq-m size rooftop and meet drinking and domestic water requirement of a family of four for 160 days. II. Yes, the ground water level in some areas is falling at the rate of one metre per year and compounding water crisis problem.

• if only argument I is strong.
• if only argument II is strong.
• If either I or II is strong.
• If neither I nor II is strong; and