False its not particals of air it is some kind of wave. i forget the name of the waves that allow us to hear but it is not particals of air.
The answer is competition
Answer:
In anatomy, the notochord is a flexible rod formed of a material similar to cartilage. If a species has a notochord at any stage of its life cycle, it is, by definition, a chordate. The notochord lies along the anteroposterior ("front to back") axis, is usually closer to the dorsal than the ventral surface of the animal, and is composed of cells derived from the mesoderm.
<span>Archaebacteria, Eubacteria, Protista, Fungi, Plantae, and Animalia</span>
Political things might be testing nucular weapons and that causes a lot of damage. social might be riots and those are very destructive if they get out of hand
