The two basic research approaches are quantitative and qualitative research. Both types have different purposes. Quantitative research is statistics-based.
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I think he means that humans don’t like being alone. It’s our nature to find someone or have a companion throughout our lives. We instinctfully talk to people to interact or make friends. That’s what I think he means
They earn less since you have to pay the tutor
Answer:
When these needs are not met, someone could be depressed or suicidal.