Answer:
1. Intellectual migration leads to lack of workforce.
2.It leads to lack of teachers for the moulding of the minds of the younger generation, and in so doing creates a vacuum in the society.
3.lt leads to underdevelopment because these intellectuals who leave these countries could have invested their resources and abilities towards the building of the country.
4.lt leads to dictatorial and authoritarian governments, since the intellectuals who understands the way things ought to be done are not many in the country, the government can ride on the ignorance of the population and use absolute power in excess. This will scuffle the country.
5.lt leads to low human resource capacity, when these intellectuals are not in the country, the vast majority of the people becomes unskilled and unprepared to face the challenges ahead.