Which is a heterogeneous mixture? the water, vinegar, and dye mixture used to make colored eggs the mixture of gases in the air used to inflate a flattened bicycle tire concrete in which you can see the sand and mortar that make up the mixture

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