hello dear, do you have any experience of a desert?  is a barren area of landscape where little precipitation occurs 
Oh cool! Where do they usually occur?
they consequently live conditions and hostile for plant and animal life.
Really? Interesting! What else?
do you know that  one third of the land surface of the world is arid or semi-arid.
Wow! I really didn't! I did hear that the cactus plant is grown in the dessert... is that true?
the temperature that prevails, by the causes of desertification or by their geographical location.
Deserts are formed by weathering processes as large variations in temperature between day and night put strains on the rocks which consequently break in pieces. Although rain seldom occurs in deserts, there are occasional downpours that can result in flash floods. Rain falling on hot rocks can cause them to shatter and the resulting fragments and rubble strewn over the desert floor are further eroded by the wind. This picks up particles of sand and dust and wafts them
Desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. About one-third of the land surface of the world is arid or semi-arid. This includes much of the polar regions where little precipitation occurs and which are sometimes called polar deserts or "cold deserts". Deserts can be classified by the amount of precipitation that falls, by