🔍 Key Concepts

• Heat-generating cargoes and why some produce more internal heat than others • Purpose of dunnage and building lath (spacing strips) in stowage • Difference between cargoes needing air circulation vs cargoes needing mainly support or protection

💭 Think About

• Which of these cargoes is known to continue a biological or chemical process during the voyage that gives off heat? • For which cargo type would creating air channels between packages be most important to prevent heat buildup, not just to prevent crushing? • Which cargoes here are relatively inert (do not change much over time), and which continue to change or ripen while stowed?

✅ Before You Answer

• Identify which option involves a cargo that is still “alive” or changing during transport • Consider which cargo would be most at risk of damage from trapped heat if tightly packed without air gaps • Recall that building lath as dunnage is used to create small vertical/horizontal air spaces so heat can escape, not just to cushion cargo