What led to free elections in Poland in 1988?

nationwide strikes
economic expansion
removal of nuclear arms
propaganda from the West

How can changes in technology or consumer demand make it difficult for people to get jobs? by changing the number or kind of jobs available by making it possible for some people to work fewer hours by making it difficult for people to buy what they want by creating a demand for things that are not available

Which college is best for study in nepal

From where do ocean waves obtain their energy