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.
Letter C sounds the best to me!
Not doing any of this is why Preventing LO/TO accidents begins with training three groups of employees: Authorized employees generally include your electricians, maintenance personnel, and some machine operators.
Lines that intersect at a single point.
The other incorrect choices:
-Parallel lines have no solution because they don’t intersect.
-Identical lines have infinite solutions because they touch at all times.
-the y intercept would have an x value of 0, however it’s 2.
The economic crisis in most of the European countries was one of the primary reasons for migration in European countries.
Explanation:
Earlier after the end of second world war, many people migrated from country side to developed countries in search for work, with the intend to get a better life. Many unskilled labors got job in developed countries after this world war.
But when countries started facing economic crisis many workers started migrating to their home countries. There was land shortage and job shortage at this time. Farmers faced crop failure
Another cause of this migration was civil war that took place in Spain.
Most people migrated to seek religious, political and personal freedom.
This migration was also impacted by global conflicts also.
