There are a total of 25 deserts in this world situated in various parts of the world.
Here is the link for their names and locations.
Bikaner is called the desert city as it is situated in the middle of Thar desert
Only about 20 percent of the deserts of the world are covered with sand.
Yes, there are caves in many deserts around the world.
For a list of all the deserts and semi-deserts of the world, see the related link below.
There are 24 major deserts in the world and dozens of minor desert areas.
The Thar Desert is in southern Pakistan on the border with India.
In most deserts of the world there are many towns and cities where food is redily available.
There are many deserts located in the world. Major deserts include the Antarctic Desert in Antarctica, the Sahara Desert in Africa, and the Gobi Desert in Asia.
There are 26 major desert areas of the world and numerous smaller deserts. For a list of the major deserts click on this link.
There are over 2 dozen major deserts in the world. For a list of these and the countries in which they are found, click on this link.
Desserts are delicious, but I think you mean deserts, also "how many percent of the world" you mean to say: "what percentage of the earths surface is covered in deserts"
There are deserts located in many places around the world. These include North America, South America, Africa, Australia, as well as Asia.