Erosion without weathering? In one of my Geography books, the following sentence is written:

Though weathering aids erosion, it is not a pre-condition for erosion to take place.

How can I justify this? Almost all the forms of erosion that I know happens on weathered rocks. Do we have any examples of erosion without weathering? As weathering means to strip off or to uncover, and erosion means to transfer.

So far I came up with one example: Blast eruption of volcano makes small stones and pebbles, which could be carried by waves, rivers etc.
Your concept of weathering is erroneous. It is not uncovering or stripping off material. Weathering is a very slow process of breaking down rocks, soil &amp; minerals, in-situ, via contact with the Earth's atmosphere, water &amp; biological organisms. This can also involve heat &amp; pressure.

Erosion, as you state, involves the moving of material. This can happen due to the action of running water, the impact of water via waves on coastal environments, wind or glaciers dislodging grains of geological material irrespective of whether it is weathered or not. Landslides are another form of erosion.