Vata is made up of the elements Air & Ether. Air gives it characteristics such as mobility & dryness, while Ether makes it subtle and light. The main seat of Vata is in the Colon.
Pitta is made up of the elements fire & water. It takes on characteristics such as heat & sharpness from fire and fluidity and oiliness from water. The main seat of pitta is the stomach and small intestine.
Kapha is the dosh of Earth & Water. Qualities received by Kapha from Earth includes heaviness and stability,and from water includes oiliness and smoothness. The main seat of Kapha is in the stomach & Chest.