Question

which of the following is not a cause of weathering? burrowing animals volcanic eruption tree roots movement of glaciers

Explanation:

Weathering involves the breakdown of rocks. Burrowing animals, tree roots, and glacier movement contribute to mechanical weathering (burrowing disturbs rocks, roots exert pressure, glaciers abrade). Volcanic eruptions are related to igneous activity/rock formation (or volcanic processes like lava flow, ash deposition) and not a direct cause of weathering (weathering is about rock breakdown, while volcanic eruptions create new rocks or modify landscape via other processes, not typical weathering mechanisms).

Answer:

B. Volcanic eruption