The clavicle will ossify first
I think it might be Stratosphere, if Ozone layer is an option I will suggest that too.
<span>The connections between cells become weakened, and the leaves break off with time. Many trees and shrubs lose their leaves when they are still very colorful. Some plants retain a great deal of their foliage through much of the winter, but the leaves do not retain their color for long.</span>
Answer:it could be C or maybe D I would more say C
Explanation: