The four necessities of life are: shelter, clothes, food and drink. Looking around the world these are the most things people are deprived from due to war, poverty etc..
In this Ayah, Allah Almighty specified these needs in Jannah for Adam because it is sufficient for life though the Jannah is full of other blessings .
-Allah Almighty combined 'hunger' and 'clothes 'in first Ayah because hunger is inner emptiness and nakedness is outer appear...