In geography, an oasis (plural: oases) or cienega (Southwestern United States) is an isolated area of vegetation in a desert, typically surrounding a spring or similar water source. Oases also provide habitat for animals and even humans if the area is big enough. The location of oases has been of critical importance for trade and transportation routes in desert areas; caravans must travel via oases so that supplies of water and food can be replenished. Thus, political or military control of an oasis has in many cases meant control of trade on a particular route. For example, the oases of Awjila, Ghadames, and Kufra, situated in modern-day Libya, have at various times been vital to both North-South and East-West trade in the Sahara Desert.
Oases are formed from underground rivers or aquifers such as an artesian aquifer, where water can reach the surface naturally by pressure or by man-made wells. Occasional brief thunderstorms provide subterranean water to sustain natural oases, such as the Tuat. Substrata of impermeable rock and stone can trap water and retain it in pockets, or on long faulting subsurface ridges or volcanic dikes water can collect and percolate to the surface. Any incidence of water is then used by migrating birds, which also pass seeds with their droppings which will grow at the water's edge forming an oasis.
I'm tired of my life but my heads alright
I got the fever off a man I know
I can feel it comin' in the air tonight
And I know, I know, I know
Swear I heard a song on the radio
My heart is laughing back at me
I can see it comin' but I just don't know
If it's gon' , it's gon, it's gonna let me be
As I saw, on the breeze
I can see the sons of those who came before me
And it's got me on my knees
What you say, anyway
Will not last, it'll pass, it'll flash right there before me
And it's got me on my knees
Cos I got the fever
Yeah I got the fever
Cos I got the fever
I'm tired of my life but my heads alright
I got the fever off a man I know
I can feel it comin' in the air tonight
And I know, I know, I know
Swear I heard a song on the radio
My heart is laughing back at me
I can see it comin' but I just don't know
If it's gon' , it's gon, it's gonna let me be
As I saw, on the breeze
I can see the sons of those who came before me
And it's got me on my knees
What you say, anyway
Will not last, it'll pass, it'll flash right there before me
And it's got me on my knees
It's got me on my knees
It's got me on my knees
It's got me on my knees
As I saw, on the breeze
I can see the sons of those who came before me
And it's got me on my knees
What you say, anyway
Will not last, it'll pass, it'll flash right there before me
And it's got me on my knees
It's got me on my knees
It's got me on my knees
It's got me on my knees