Final answer:
To control the fire in the wooden storage building, approximately 200 gallons per minute (gpm) of water would be required.
Step-by-step explanation:
To estimate the quantity of water required to control the fire in the wooden storage building, we need to consider the fire's intensity and the amount of water required to suppress it. One common estimate is to use the National Fire Protection Association (NFPA) guideline, which suggests using 100 gallons per minute (gpm) for every 10 feet of fire. In this case, the building is 20 feet high, so we would need approximately 200 gallons per minute (gpm) of water.