Culture is defined as the knowledge, attitudes, and behaviors shared by a group. It is influenced by factors like food, shelter, religion, language, and political systems. Culture can change over time through processes like innovation, diffusion, and acculturation. Population distribution is influenced by habitat suitability and availability of arable land for farming. Migration is affected by push factors that cause people to leave an area and pull factors that attract people to an area. Language helps establish group identity while religion influences lifestyles. Major world religions discussed are Hinduism, Judaism, Buddhism, Christianity, and Islam.