Which action is formed by earths atmosphere ? A. Magnetic charges from space are prevented from reaching earths surface
B. Ultraviolet rays are prevented from reaching the ozone layers
C. Earths temperature is raised and moderated by trapping in heat
D. Charged particles from the sun are prevented from reaching earth.

Steven spielberg's classic movie jaws was a thriller about a great white shark that terrorized tourists at a local beach. just before the shark's appearance, eerie music began playing. as the unseen shark came closer, the tempo of the music picked up. after the audience had experienced this a few times, the sound of the music triggered the emotional reaction of fear in the audience even though the shark still had not appeared. at that point, the sound of the eerie music was a: a) unconditioned response (ucr) b) conditioned response (cr) c) conditioned stimulus (cs) d) unconditioned stimulus (ucs)