The correct answer is the following.
Indeed, many factors affect project management and cross-cultural teams. For instance, if I am working with people from the US, India, and China, I have to take into considerations that each country has its own culture, traditions, and working habits.
The two examples I pick are cultural.
In the US, the work culture is effective and efficient. To quickly resolve things on time and do not waste any moment because it impacts productivity. You have your 30 minutes for lunch and get back to work.
In India, things are very different, they move in a slower motion not because they are lazy but because it is their cultural approach to work. They are used to do things "one step at a time, and indeed, there is no hurry to finish work.
The other consideration is how religion affects work culture. In the US, you do not mix work with religion. You clearly separate both because each has its own place. There is a time to pray and a place to do it. And it is not the office. You go to the office to work.
But in India is different. Religion is embedded in Indian people. From the way the dress to the way they speak, they follow spiritual rules that one way or the other, affect their decisions at work. And if some of them are not Hinduists, but Muslims, they have to take "short breaks" five times a day to pray. And that affects the workplace.