by running water and chemical weathering
:)
Water
submarine canyons
Minor landforms include buttes, canyons, valleys and basins.
erosion
Submarine Canyons
valleys and canyons are sometimes created by glaciers.
Valleys.
In many cases, rivers are responsible for cutting valleys and canyons.
That is the correct spelling of the plural noun "canyons" (mountain valleys).
Canyons and valleys are typically formed by the erosion of rock and sediment by water, wind, or ice over long periods of time. They can also be created by tectonic activity, such as the shifting of Earth's crust along fault lines. Additionally, volcanic activity can form canyons and valleys as lava flows and subsequent erosion shape the landscape.
Pluto has only been observed from orbit, so we don't know for sure, but it does appear from photos that there are valleys and canyons.
v
Water
deep sea canyons
Earth
there are some in canyons and some in valleys
small stuff