How many 500-gallon tanks are used for oxygen storage in the O2N2 Shop?

The number of 500-gallon tanks used for oxygen storage in the O2N2 Shop is two. This is significant because having multiple tanks allows for redundancy and ensures that there is a sufficient supply of oxygen available for various operations conducted within the shop. The design and operational capacity of the oxygen storage system are crucial for maintaining safety standards, supporting lab functions, and ensuring a continuous supply of oxygen for both operational and safety-related needs.

In the context of naval operations, redundancy is key in critical systems to minimize the risk of outages or failures, making the presence of two tanks a practical solution for sustaining oxygen supply demands. Thus, the choice reflecting the use of two tanks aligns with operational safety practices and the need for efficient resource management in the O2N2 Shop.