Which of the earth's 2 forest biomes are missing from the image above

Who developed the theory of plate tectonics?

The inner planets mercury, venus, earth, and mars were formed by

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.