toxic fogg essay pls ans fast
Answers
Explanation:
Fog is special type of thin cloud consisting of microscopically small water droplets which are kept in suspension in the air near the ground surface and reduces horizontal visibility. According to Byers fog is defined ‘as almost microscopically small water drops suspended in the atmosphere and reducing the horizontal visibility to less than one kilometre’. It may be pointed out that clouds are formed due to ascent, expansion and cooling of air while fogs are formed due to radiation, conduction and mixing of warm and cold air masses near the earth’s surface.
Fog is formed when the moist air (with relative humidity above 97 percent) becomes saturated, reaches its dew point and further cools so that water vapour is condensed around dust particles, smokes etc. to form tiny water droplets which being very light are suspended in the air.