What conditions would be predicted based on the information in the weather map? A) The advancing mass of cold air creates a low pressure area. B) The cold front advances without bringing any change in the weather. Eliminate C) The high pressure causes cold air to move toward the low pressure areas. D) The cold front advances from an area of high temperature to an area of low pressure.

Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.