Answer:
Primary succession can be described as a form of ecological succession in which plants and animals colonize a land where previously there were no signs of life. For example, the formation of a community on a land where lava eruption might have occurred.
Secondary succession is a type of ecological succession in which plants and animals colonize a land which was destroyed due to some disaster. Like the formation of a community after fire.
Climax community can be described as the final stage of succession. In this stage, the complex plants and trees will inhabit a land which will not undergo further changes.