Answer:
In order for a fracture to heal, the bones must be held in the correct position and protected. Soon after a fracture occurs, the body acts to protect the injured area, and forms a protective blood clot and callus around the fracture. New "threads" of bone cells start to grow on both sides of the fracture line.
Explanation:
Your answer is gravitational forces
Soil is a mixture of weathered rock and organic material.
Increasing melanin production.
Good luck! (:
~ Jasmine
