An oasis can be formed by an underground aquifer or river that creates enough pressure for water to seep to the surface, forming the oasis. These aquifers and natural springs allow for life to exist in harsh climates like the desert and are often well known to local herders, farmers, and travelers in the region.

How does an oasis work?

An oasis is an small patch of vegetation surrounded by desert. Communities have traditionally planted strong trees, such as palms, around the perimeter of oases to keep the desert sands from their delicate crops and water. An oasis is an area made fertile by a source of freshwater in an otherwise dry and arid region.

Why oasis is formed on desert?

Over a long period, the depression is deepened and enlarged by harsh weather conditions in the desert. The depression deepens further and reaches the water table. The underground water comes to the surface to form an oasis.