What is the primary geographical feature of Western Sahara?

Answer 1

Some geographical features of the Sahara are sand dunes, dry valleys, salt flats, and several mountain ranges, some of which are volcanic.

Answer 2

The Sahara Desert, located in North Africa, is the world's largest "hot desert" (as opposed to a cold desert which can be covered with snow).

The Sahara's topographical features include shallow basins, large oasis depressions, serirs or regs (gravel-covered plains), plateaus, mountains, sand sheets, dunes and sand seas (ergs).

The highest part of the desert is at the summit of Mount Koussi, which is 11,204 feet (3,415 m) high. However, the lowest point of the Sahara is 436 feet (133 m) below sea level: in the Qattera Depression in Egypt.

Over 25 percent of the Sahara's surface is covered by sand sheets and dunes. The balance consists of rock, scree as well as some extinct mountain ranges.

The most common types of dunes include tied dunes, blowout dunes, barchan and transverse dunes, longitudinal seirfs, and complex sand seas. Within the Sahara are several pyramidal dunes that reach over 500 feet in height while the draa, a mountainous sand ridge, reaches over 1,000 feet. Researchers have for many years tried to figure out how these dunes were formed, but the case remains unsolved.

Answer 3

There are many landforms in the Sahara desert. For example:

Wadis- these are 'dry river beds' which only consist of rain during times of rain. (formed from suspense and abrasion)

Zuegens

Yardangs

Rock pedestals- this is from sand from suspense and abrasion being blasted against the alternating layers of hard and soft rock causing the softer rock to erode away.

Dunes (like barchen dunes)

Answer 4

Lots of sand, and widely-dispersed oases.

Answer 5

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