How many different synthetic materials are included in a firefighter's jacket?

3 materials

Explanation:

The jacket and trousers worn by a firefighter have to be constructed from materials that will withstand intense heat. Aramid fiber is a synthetic fiber that is highly regarded for its strength and heat resistance. Nomex is the trade name for arimid fiber clothing, and this type of material is used in the construction of a firefighter jacket and trousers. Nomex is often combined with Kevlar to increase the strength of the material.

Firefighters jackets are made of fire resistant fabrics such as Nomex, Aramid or Kevlar. Bunker gear or turnout gear is the term used by many fire departments to refer to the protective clothing worn by firefighters.

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes