Elements emit colours when heated because electrons in atoms can have only certain allowed energies.Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. Every element has a different number of electrons and a different set of energy levels. Thus, each element emits its own set of colours. See, for example, mercury and neon above. Those colours are as distinctive to each element as fingerprints are to people.
Answer:
The correct answer is option B. Work/employer
Explanation:
If a person received a prior job safety training, it mans that the employer of that person provided him the training.Every job has a specific job description which comes with its own safety hazards. Each company knows how to prevent accidents from happening and making sure each employee follows the company's specific safety protocol.
Therefore it is the employing company who provides the pre job safety training.
If what I got was right, I got 260.
