What is the main difference between primary and secondary succession? A. Primary succession involves plant populations, and seco
ndary succession involves animal populations. B. Primary succession occurs on land, and secondary succession occurs in aquatic environments. C. Primary succession occurs on barren land, and secondary succession occurs where soil is present. D. Primary succession occurs overnight, and secondary succession occurs over hundreds of years.
Primary succession occurs following an opening of a pristine habitat, for example, a lava flow, an area left from retreated glacier, or abandoned strip mine. In contrast, secondary succession is a response to a disturbance, for example, forest fire, tsunami, flood, or an abandoned field.
Fertilizer is added to soils to increase plant productivity. A common type of fertilizer is called NPK fertilizer because of its ingredients: nitrogen (N), phosphorus (P), and potassium (K).
