Which of the following woods is known for its decay resistance?

Bald cypress is renowned for its natural decay resistance, making it a preferred choice for applications that require durability, particularly in outdoor settings or environments with excessive moisture, such as wetlands. The wood contains natural oils and substances that inhibit fungal growth and deterioration, allowing it to withstand harsh conditions better than many other types of wood.

In contrast, pine is relatively softer and more susceptible to decay, especially if not treated or maintained properly. Plywood, while durable and versatile, does not inherently have decay-resistant properties, as it is made from layers of thin veneer glued together, which can be vulnerable to moisture if not properly sealed. Oak, although a strong and durable hardwood, does not possess the same level of decay resistance as bald cypress, particularly in wet conditions. Thus, bald cypress stands out for its unique ability to endure without significant deterioration over time.