What makes Semi-Chisel chains preferable in dusty environments?

Semi-chisel chains are designed with rounded teeth rather than the sharp, pointed ones found in full-chisel chains. This design is particularly advantageous in dusty or gritty environments because the rounded edges are less susceptible to getting damaged or dulling when encountering dirt and debris. In such environments, the particles can cause greater wear on sharper edges, leading to faster dulling. Therefore, semi-chisel chains maintain their cutting efficiency better under these conditions, making them a preferred choice for use in areas where dust and dirt are prevalent.

While other choices may seem plausible, they do not relate directly to the advantages offered by semi-chisel chains in dusty conditions like the resistance to dulling due to dirt.