Cultural diffusion is when different cultures share ideas, customs, and traditions with each other. Differences in language reflect how unique and diverse different groups of people are. The chief language in most of these countries is often the main language spoken by the majority of people, like Spanish, English, or Mandarin.
For religion, most practice a major faith like Christianity, Islam, or Buddhism. Some blend different beliefs together to create their own special mix of traditions. An example is people who celebrate both Christmas and Hanukkah.
Food also reflects the culture of a place. The regions' first people grew crops that are important to their diets, like corn, rice, or wheat.