America has a class system.
Hope this helps!!
Answer:
It can reduce brain injuries.
Explanation:
This rule of wearing helmet is a good initiative taken by the commissioner of the national football league. these helmets reduce the risk of concussions because these helmets are made of good materials and able to protect the head of the players from brain injury. So avoid such type of injuries, the helmet should be used by the player which can absorb all the energy and protect the head of the player.
A RAIN GAUGE measures the amount of rain that has fallen over a specific time period. A WIND VANE is an instrument that determines the direction from which the wind is blowing.
In mans relationship with his nation
In mans relationship with other man
