Hello kiddo! The Nitrian desert is a place where there is a lot of sand and not many plants or animals can live there because it is really hot and dry.
It is located in Egypt, which is a country in Africa. People used to live near the Nitrian desert because it was a good place to find salt and other minerals.
But because it's so hot and dry, people have a hard time surviving there without special tools and equipment, like big water tanks and protective clothing.
So, just like when you go play outside on a really hot day, it's important to drink lots of water and rest in the shade so you don't get too hot and sick. People who live near the Nitrian desert have to take even more precautions to make sure they stay safe and healthy!