Instead, arthropods<span> must go through the delicate process of shedding the old exoskeleton and expanding to a larger size before the new exoskeleton hardens. This process is known as </span>molting<span>. Here we see a cicada emerging from its </span>molted <span>exoskeleton.</span>
Arthropods' rigid exoskeletons provide protection and the basic building material for an arsenal of tool-like appendages. But the exoskeleton also has its downside. Since the exoskeleton is hard and its outer layer is non-living, it cannot grow bigger by small increments as the human skeleton does. Instead, arthropods must go through the delicate process of shedding the old exoskeleton and expanding to a larger size before the new exoskeleton hardens. This process is known as molting.
False, because if it is air pollution, the polluted particles diffuse in the air and then travels. In addition, for noise pollution, sound waves travel!
