You have determined that a cargo space on a freight vessel is 45 feet by 36 feet by 62 feet. How many pounds of carbon dioxide is required for this space?

Correct Answer: Option C — 3348

Volume equals 45 ft × 36 ft × 62 ft = 100,440 cubic feet. Dividing by the regulatory factor of 30 cubic feet per pound for cargo spaces yields 3,348 pounds of required carbon dioxide.