How does social media influence people?
It’s unclear what you mean by “influence” (emotions, behavior, opinions, health?).
“People” is far too broad – which group are you referring to?
Improvement: How does daily use of Instagram affect the self-image of Dutch teenage girls aged 14–16?
What are the causes of poverty?
Poverty is an extremely complex topic with economic, political, social, and cultural dimensions.
For a bachelor-level study, this is far too large to investigate with the time and resources available.
Improvement: What is the relationship between education level and poverty among single parents in Rotterdam?
What percentage of students at our university has a part-time job?
This is purely descriptive and only provides a number.
There is no analysis or explanation; you are only answering a factual question.
Improvement: Which factors explain why some students at our university have a part-time job while others do not?
Why is online education worse than classroom education?
The question already assumes that online education is “worse,” which biases the research.
This can lead to bias in data collection and analysis.
Improvement: What are the differences in academic outcomes between students who take online courses and those who attend classroom courses?
Does life exist after death?
This is a philosophical or religious question that cannot be answered empirically using scientific methods.
There are no measurable, observable data to provide a conclusive answer.
Improvement: What beliefs do Dutch people hold about life after death, and which factors are associated with these beliefs?