NEET BIOLOGY

Detailed explanation-1: -Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).

Detailed explanation-2: -Primary Succession: Succession that occurs on surfaces where no soil exists. It leads to the gradual establishment of biotic communities in lifeless areas. Rock weathers and crumbles into particles, releasing nutrients. Initial pioneer species: lichens, mosses.

Detailed explanation-3: -Primary succession begins when no plant life is present on the landscape, such as after a lava flow or glacial retreat. Over centuries, soil forms and deepens and successive communities of plants grow.

Detailed explanation-4: -Primary succession begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil. Primary succession leads to conditions nearer optimum for vascular plant growth; pedogenesis or the formation of soil, and the increased amount of shade are the most important processes.