B ) Como as estrelas também podem servir como meio de orientação

Does the threat of global warming require international cooperation? why or why not?

Which two nations are doing the most to combat their environmental issues?

How do hearths affect cultural diffusion? a. a hearth is the destination of cultural diffusion. b. a hearth divides a cultural region in two. c. a hearth is the beginning point of cultural diffusion. d. a hearth is the means of cultural diffusion. e. a hearth is the meeting point of two diffuse cultures.