Skul along with CSF and meninges provide protection to brains and hence it would be wrong to say that only skull provides protection to brain
Explanation:
It is not the skull only that protects the brain. Actually a set of tissues and fluid along with the skull protects the brains. For instance, the Cerebrospinal fluid (CSF) plays an essential role in preventing brain from any injury by enacting as a cushion between the skull and brain. Meninges are set of three tissues that lie between the brain and skull and provide coverage and protection to the brain.
Hence, skull do not protect our brain as much as we think
I don't know why it doesn't protect your brain as much as you think but maybe this will help
Explanation:
The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. ... It runs down from the brain through a canal in the center of the bones of the spine. These bones protect the spinal cord.
Gas exchange occurs at two sites in the body: in the lungs, where oxygen is picked up and carbon dioxide is released at the respiratory membrane, and at the tissues, where oxygen is released and carbon dioxide is picked up.
Answer: Yes this chemical reaction obeys the laws of physics. Its very simple, let me explain.
Explanation:
When Iron(Fe) oxidizes it gains three oxygen atoms so it reacts to form Fe2O3 so it becomes bigger or explands. Its also sometimes called "oxide jacking".