The Appalachian mountain range is made of folded rock layers. The presence of this folded range is evidence of which process of mountain formation? A. separation of two fault blocks
B. collision of two plates with each other
C. eruption of volcanoes near each other
D. deposition of sand and rocks from rivers

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

In which state was more than 100 billion tons of coal mined in 2005?

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material