Question: What were the Geographical Conditions of Arabia at the advent of Islam?
Answer:
Introduction: Saudi   Arabia monarchy in south western Asia, occupying most of the Arabian Peninsula. Saudi   Arabia is a land of vast deserts and little rainfall. Huge deposits of oil and natural gas lie beneath the country’s surface. Saudi Arabia
 was a relatively poor nation before the discover and exploitation of 
oil, but since the 1950s income from oil has made the country wealthy. 
The religion of Islam developed in the 7th by Abdul Aziz ibn Saud, and it has been ruled by his descendants ever since.
Saudi   Arabia is bounded on the north by Jordan, Iraq, and Kuwait; on the east by the Persian Gulf and Qatar; on the south east by the United Arab Emirates and Oman; on the border with the United Arab Emirates is not precisely defined. Saudi Arabia has an area of about 2,240,000 sq km (about 864,900 sq mi). The capital and largest city is Riyadh.
Geography: The Arabian  Peninsula
 is essentially a huge, tilted block of rock, highest in the west and 
sloping gradually down to the east. Most of this slab of rock is covered
 with the sand of several large deserts. Saudi   Arabia’s
 landscape also contains mountain ranges, flat coastal plains, and the 
rocky remains of hardened lava flows. The country’s climate is hot and 
dry, and there are no permanent rivers or lakes. Saudi   Arabia can be divided into four natural regions. These are the mountainous western highlands; the rocky central plateau;
 the more fertile, eastern low-lying coastal plain; and the sandy desert
 areas of the north, east, and south. A string of mountain ranges 
stretches along the western edge of Saudi Arabia. The northern segment of these highlands, known as Al Hijaz (Hejaz),
 has a general elevation of 600 to 9000 m (2,000 to 3,000 ft), with some
 mountains exceeding 2,000 m (6,500 ft). Rainfall here is infrequent, 
but streams flowing down the west side of the highlands allow limited 
agriculture in valleys and on the narrow coastal plain. On the fields of
 dark-coloured, broken basaltic stone known as harras.
 South of Al Hijaz the highlands continue into the region known as 
‘Asir. Here, the highlands are rugged and reach considerably higher 
elevations than in Al Hijaz: Much of ‘Asir lies between 1,500 and 2,000 m
 (5,000 and 7,000 ft). The highest point in Saudi   Arabia, Jabal Sawda’ (3,207 m 10,522 ft), is located in this region, near the border with Yemen. ‘Asir receives more rainfall than Al Hijaz, allowing more widespread farming.
Considerably more than half the area of Saudi Arabia is desert. Some desert areas are covered with shifting sand dunes, while others are more stable flat or rippled expanses of sand. Shaped and moved by winds, sand dunes
 take the form of long ridges or tall hills. Sand, gravel, or bare rock 
basins lie between the dunes. Few plants grow in these arid deserts, 
except in scattered oases supported by springs or wells. Three large 
deserts lie on three sides of the country’s central plateau: An Nafud to
 the north, the Rub’ al Khali to the south, and the narrow Ad Dahna’ 
connecting these two on the east. The Rub’ al Khali, one of the largest 
deserts in the world, has an area of about 650,000 sq km (about 250,000 
sq mi), nearly as large as the U.S. state of Texas.
An Nafud
 is characterized by parallel sand ridges, most 6 to 15 m (20 to 50 ft) 
high, but some sand hills rise as high as 30 m (100 ft). In some areas, 
wind has stripped the bedrock surface clean of loose material. 







