I’m not sure what it means :/

answer: 1.)Two fluid technologies that make use of air is a desk chair and air compressor

2.)Two fluid technologies that make use of water is a fire extinguisher and refrigerator

3.)A simple, albeit slightly less useful example perhaps, is when a foundry, or individual metalworker, liquefies metal such as iron, aluminum, or steel so that it can be mixed in with specific forging agents or transferred around a workplace.

4.)It is important to go through a fluid phase as it is being produced because the object must go through heat to be melted and then it should be put into a mold to be formed. Also, it go though heat to keep it from cracking and go to be cooled and harden.

(happy to help)

Explanation:

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.