Question

please answer all three​

Answer 1

Answer:

What Is Brain Drain?

Brain drain is a slang term indicating substantial emigration or migration of individuals. A brain drain can result from turmoil within a nation, the existence of favorable professional opportunities in other countries, or from a desire to seek a higher standard of living. In addition to occurring geographically, brain drain may occur at the organizational or industrial levels when workers perceive better pay, benefits, or upward mobility within another company or industry.