Question

Which one of the following area is high rainfall ? 
1)Sahara
2.)Polar areas 3.)Africa 4.)
Arabian​

Answer 1

Answer:

The name "Sahara" is derived from the Arabic word for "desert" in the feminine irregular form, the singular ṣaḥra' (صحراء /ˈsˤaħra/), plural ṣaḥārā (صَحَارَى /ˈsˤaħaːraː/[4][5][6][7]), ṣaḥār (صَحَار), ṣaḥrāwāt (صَحْارَاوَات), ṣaḥāriy (صَحَارِي).

The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south, it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan Region of Sub-Saharan Africa. The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, and the Libyan Desert.

For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000 year cycle[8] caused by the precession of Earth's axis as it rotates around the Sun, which changes the location of the North African Monsoon. The area is next expected to become green in about 15,000 years (17,000 CE).

Answer 2

Answer:

118mm

Tamanrasset sits in a wadi, or valley, of the Ahhagar massif, a large volcanic mountain range in the Sahara Desert. Much of this massif is a national park and contains the famous hermitage site of Assekrem. Assekrem is high in the mountains, 2,700 metres above sea level, and has an annual rainfall of 118mm.