Cartography- Ch. 1 Sec. 1 Page 5- The Science of mapmaking. Contagious diffusion- Ch. 1 Sec. 3 Page 26-27. The rapid, widespread diffusion of a characteristic throughout the population. Example: The spread of McDonalds across the globe Cultural ecology- Ch. 1 Page 34?the study of how humans adapt to social and environmental factors in order to survive and prosper. Example: Adobe style housing in the Southwest. Culture- Ch. 1 Section 2 Page 18. The body of customary beliefs, material traits, and social forms that together constitute the distinct tradition of a group of people. Example: Religion, Language, Customs Density- Ch. 1 Sec. 3 Page 22. The frequency with which something occurs in space. Example: The number of people who live in a 1 mile area.