2007-02-14 09:03:09 · 5 answers · asked by Pete T 2 in Education & Reference ➔ Trivia
An oasis is a fertile spot in the middle of a desert, an island of life in an ocean of temperature extremes. Any oasis always contains one or more springs. Oases make it possible to survive long treks through the desert. In large deserts such as the Sahara, towns cluster around sources of water such as oases and rivers.
What causes an oasis? An oasis is actually a spot in the desert where the elevation is low enough that the water table is right underneath the surface, resulting in the presence of springs. Even in a desert, it rains occasionally, and this produces a water table just above the bedrock, usually several hundred feet below the surface. Sand is very porous, so most water runs right through it and down to the bedrock.
An oasis is a fertile spot in the middle of a desert, an island of life in an ocean of temperature extremes. Any oasis always contains one or more springs. Oases make it possible to survive long treks through the desert. In large deserts such as the Sahara, towns cluster around sources of water such as oases and rivers.
What causes an oasis? An oasis is actually a spot in the desert where the elevation is low enough that the water table is right underneath the surface, resulting in the presence of springs. Even in a desert, it rains occasionally, and this produces a water table just above the bedrock, usually several hundred feet below the surface. Sand is very porous, so most water runs right through it and down to the bedrock.
2007-02-14 09:45:11 · answer #1 · answered by Kate 6 · 2⤊ 0⤋
I don't understand the question
2014-11-02 15:56:28 · answer #2 · answered by Anonymous · 1⤊ 0⤋
an underground spring
2007-02-14 09:06:19 · answer #3 · answered by true blue 6 · 0⤊ 0⤋
Tha band?
2016-11-15 14:24:20 · answer #4 · answered by Tyler 4 · 0⤊ 0⤋
an aquifer underground
2007-02-14 10:14:40 · answer #5 · answered by Anonymous · 0⤊ 0⤋