Arroyo is a landform term. It refers to a gulch or ravine through which a fast stream of water could flow. It usually is dry except after heavy rain.
a key is a landform that starts with a k and a knoll is a landform that starts with K and means a hill.
Yardang is a landform. It begins with the letter y.
delta
Basin
Erg is a landform. It is a flat sandy area of the desert with no vegetation.
Lagoon, Lake
One landform that starts with "Y" is a yardang, which is a narrow, sharp-crested ridge formed by wind erosion in a desert landscape.
funnel cloud
Bight of Benin & Bight of Biafra
Palo Duro Canyon is a landform located in the Texas Panhandle near Amarillo, Texas. It begins with the letter P.
The landform in Africa that starts with the letter "U" is the "Ugab River" in Namibia. It is a seasonal river that flows through the Namib Desert before emptying into the Atlantic Ocean.
Tepui, tombolo and tor are landforms. They begin with the letter t.