Fog. Vehicles driving through fog on a motorway. A fog warning sign (centre) is lit up to warn drivers to slow down as fog reduces visibility. Fog is comprised of tiny droplets of water. It forms when relatively warm,moist air is cooled. As it cools,some of the water vapour in the air condenses to form water droplets. This is because cool air can carry less water vapour than warm air | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / JEREMY WALKER |
Taille de l’image : | 3554 px × 2480 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |