Answer: 8.64 × 10^9
Explanation:
In 1 minute, the amount of water of Niagara Falls = 6 × 10^6 cubic feet
Total minutes in a day = 1440 minutes
Therefore, the amount of water that would go over Niagara falls in one day
= 6 * 10^6 × 1440
= 8.64 × 10^9 cubic feet