Yes, there are mountain ranges under the sea. Mid-ocean ridge is a term for underwater mountains. The East Pacific Rise is an example of underwater mountains.
It is the thickest under mountains ranges.
Africa does have mountain ranges. The mountain ranges run from the Dead Sea in Israel, which is not part of Africa, to Switzerland.
On land
Yes. There are both mountains and valleys under the sea.
The Urals and the Caucasus are the mountain ranges and the bodies of water are the Black Sea and theCaspianSea
"Sea Areas" appear dark because they do not reflect as much LIGHT as do the MOUNTAIN ranges.
The crust is thicker under a mountain range.
Pararell to the red sea and meditterran sea coast on west and of the arabian peninsula
Along the western and southern shores of the Caspian Sea, there are mountains (specifically the Caucasus, Alish, and Elburz Mountain Ranges going counterclockwise), but on the northern and eastern shores of the Caspian Sea, there are lowlands, some which are below sea-level.
Deep sea trenches, Mountain ranges, Volcanoes, and Earthquakes.
In Oklahoma there are 4 primary mountain ranges. They are: the Ouachita Mountains, the Arbuckle Mountains, the Ozark Mountains, and the Wichita Mountains.Ouachita_Mountains
From the weathering, erosion, and subsequent deposition of sediments from inland mountain ranges as they make their way to the sea.