Sandy soil is nothing but sand or soil composed mainly of sand. The color of sandy soil may differ from white to beige to golden brown. The sand particles are very distinguished and detached. They are not united with each other. As a result it is devoid of minerals (nutrients).
Now that we have understood the soil properties lets understand how the stress works.
Air: Air can easily penetrate through sandy soil because the sand particles are very detached. Hence there is no stress on the plant as far as air is concerned.
Water: Water percolates very easily through sand however Sand does not retain water. Hence the plant undergoes a big stress as far as water is concerned.
Nutrients: Sandy soil does not contain any vital nutrients required by plants. Hence this is a major stress factor.
Synopsis: Lack of nutrients and non-retention of water makes this soil almost useless for gardening.