Agroup of antelope leaving the herd in search of better grassland is an example of a. immigration. b. emigration. c. increasing birth rate. d. decreasing death rate. select the best answer from the choices provided

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

your answer is going to be physical weathering