Because you cannot test it or observe it.
A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment.
Answer:
Explanation:
Based on what is known about the fetal skeleton and the ossification process it can be said that this occurs due to babies having more of the osteoblasts bone cells. These cell's main function is to lay down new bone material, this therefore creates a thicker harder bone which allows for proper support so that the body can continue growing and become stronger overall.
Answer:
bucket ( the more far from sunlight the least amount of oxygen will produce)
Explanation:
the more far away from sunlight, it will produce least amount of oxygen
The could have snuck away on a ship, as they are very sneaky