Why is Brain Drain negative for the country of origin? Support your answer with few points. Each points must be briefly explained.

Does anyone know the answers for these

The coco river is a natural border between nicaragua and which other country

Although china’s total economic output, measured by gross domestic product (gdp), is third largest in the world, it is considered a developing nation. what is most likely the most important factor for this designation? a. china’s government spends money on things that do not benefit human development. b. china has a large population, so its gdp per person is only modest. c. china has a strong economy but weak literacy and school attendance rates. d. china’s high rates of disease offset the country's economic gains.