How is flowing rock different from flowing water

The flowing water is defined as the flow of water over the surface of the earth per unit time. It also includes the flow of water under the earth's surface as groundwater. This flow of water takes place along a non-horizontal plane as water flows from a higher elevated area to a region of low elevated area.

on the other hand, rock flow refers to the flowing of the rocks. This takes place over the less dense layer of the asthenosphere where the rocks are generally solid in nature but they have the tendency to flow during the time of deformation. This allows the lithospheric plates to move over the asthenosphere layer because of the convection current that forms in the mantle. It is possible due to the supply of heat from the interior of the earth.

This is how rock flow differs from water flow.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

fumikage isn't really a bird, and tsuyu does have teeth. tsuyu has a transformation quirk which still allows her to be partially human. otherwise we'd have a large frog running around. fumikage has teeth because again, he isn't a bird. his head was a quirk mixture if i'm correct.