How many world regions are there?

Risk of harm in social and behavioral sciences generally fall in three categories, which are: breach of confidentiality, loss of autonomy, and study proceduresstudy procedures, breach of confidentiality, and loss of employmentinvasion of privacy, adverse reaction to study drug, and discriminationinvasion of privacy, breach of confidentiality, and study procedures

Why are the majority of the world's economies mixed? what may happen to the "pure" types of economies (traditional, socialist/command, market capitalist) when they incorporate elements from other economic models?

Nepal is the common garden of different caste ethnic groups language and culture briefly explain the statements