Question

why do villagsin the desert region grow up around oases​

Answer 1

The word oasis came into English via Latin:

Answer 2

Answer:

Oasis is basically a desert spring.

Villages in the desert region generally grow up around oases because of the following reasons:

Oases were found only in particular places of deserts, where there is an underground water source beneath the surface. The water gets accumulated below the sand, so it becomes naturally fertile for the flora and fauna. Life in deserts quite really holds a lot of hardship, people try to settle near an oasis for their survival, to minimize water scarcity and support vegetation on their own to an extent.