Both hydrarch and xerarch successions lead to $...........$ conditions.

Which of the following is the major source of phosphorus?

Identify the pioneer species that colonize bare rock.

What is the natural reservoir of phosphorus?

Choose the correct sequence of transitional communities in Xerarch succession.

Distinguish between primary succession and secondary succession based on the following examples:
$I-$ Abandoned farmland
$II-$ Burned or cut forests
$III-$ Newly cooled lava
$IV -$ Bare rock
$V -$ Flooded lands
$VI -$ Newly created pond or reservoir
Identify the correct grouping for primary succession and secondary succession respectively.