The correct answer is c trachea
The clavicle or the collar bones are the only long bones in the body that lie horizontally. Calling the clavicle as the beauty bone is basedon the reason that it helps frame the face and round out the imperfection of your jaw line.
Hyperkeratosis is amy lesion with overgrowth and thickening of the skin, such as warts, calluses, and corns.
I just had this answer but it hasn't been graded. I put 1. Meteor impacts, 2. volcanic gases and 5. Milankovitch cycles. I didn't put earthquakes because I wouldn't think it would affect the climate changing since they just affect ground movement.
I think A and B. And maybe C?