Physical Characteristics of Landforms. Portal:Geography. Landform. A landform in the earth sciences comprises a geomorphological unit, and is largely defined by its surface form and location in the landscape.
As part of the terrain a landform is an element of topography. Landform elements also include land such as hills, mountains, plateaus, canyons, valleys, seascape and oceanic waterbody interface features such as bays, peninsulas, seas and so forth, including sub-aqueous terrain features such as mid-ocean ridges, volcanoes, and the great ocean basins. Earth. Earth is the third planet from the Sun.
It is the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets.