TEHRAN, Nov. 19 (MNA) – Cold and high humidity in Saman city has caused formation of very thick and dense fog ober the river Zayandeh Rud.

Fog is formed when small drops of water are suspended in the air. The droplets together form a translucent layer in the air, reducing visibility. Fog is a layer of cloud near the earth's surface.

Your Comment

You are replying to: .
  • 9 + 2 =