Which statement about a jet stream is true? a. the winds flow only from south to north. b. the winds flow only from north to south. c. the stream is a river of strong wind. d. the stream is narrow but not deep.

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs