vapour pressure The partial pressure of water vapour in the atmosphere. For a liquid or solid, the pressure of the vapour in equilibrium with the liquid or solid
surface tension The force acting on the surface of a liquid, tending to minimize the area of the surface; quantitatively, the force that appears to act across a line of unit length on the surface. Also known as interfacial force; interfacial tension; surface intensity
area under stress Areas that are flooded by rising number of tourists or other kinds of pressure and suffer from insufficient or inappropriate planning and management. Damage frequently arises from a lack of understanding or interest of the value of such sites(environnementale)
