2007-11-11 04:44:39 · 9 answers · asked by I ♥ my boyfriend! 5 in Science & Mathematics ➔ Weather
Fog is essentially a dense cloud of water droplets, or cloud, that is close to the ground. When night conditions are cold, clear, and calm, the ground releases the heat it absorbed during the day. As the temperature of the ground decreases, it cools the air above it to the dew point (the point at which water vapor condenses into droplets of liquid water), forming a cloud of water droplets known as radiation fog. This is the kind of fog one sometimes sees settling in a valley. Fog also forms when warm, moist air travels over a cold surface. The moisture in the air condenses and forms advection fog, or “land fog.” There is also another type of fog known as sea fog, which is carried from place to place on air currents. This type, which often occurs around San Francisco in the United States, is difficult to dissipate because it continuously forms.
Water droplets are only about 0.01 millimeter in diameter. A dense fog contains about 1200 visible drops per cubic centimeter of empty space - barely enough water to wet an object’s surface.
2007-11-11 04:54:35 · answer #1 · answered by billabong 2 · 2⤊ 0⤋
Fog is nothing but cloud on ground.It is composed of minute water droplets suspended in the atmosphere and occurs very near the surface of the earth.These droplets scatter the light rays and thus visibility is considerably reduced.When visibility is less than 1000 metres,fog is said to prevail.Fog is formed (1) when the temperature is reduced below the dew point or (2) when the moisture is added to the air until condensation takes place.
2007-11-11 05:29:29 · answer #2 · answered by Arasan 7 · 1⤊ 0⤋
Fog is a type of smoke but it isnt't it's when it has rained and then heat comes and takes the water so it can build a cloud but you see fog in the night and morning ITS COOL
2007-11-11 04:49:45 · answer #3 · answered by Anonymous · 0⤊ 3⤋
fog is like a dense cloud of water droplets or a cloudvery close to the ground. it can form when warm moist air forms over a cold surfece.
2007-11-11 04:51:44 · answer #4 · answered by spidergurl 4 · 1⤊ 3⤋
A clould of varying size formed at the surface of the earth by the condensation of atmospheric vapor and interferingto a greter or lesser extent with horizontal visibility.
2007-11-11 04:50:15 · answer #5 · answered by WC 7 · 0⤊ 3⤋
Mist?
2007-11-11 09:17:44 · answer #6 · answered by rico3151 6 · 0⤊ 0⤋
it's just water which floats in the air
2007-11-11 04:54:44 · answer #7 · answered by daniel79 2 · 0⤊ 2⤋
Low clouds.
2007-11-11 04:49:32 · answer #8 · answered by betternher 5 · 0⤊ 4⤋
water condensation
2007-11-11 04:48:30 · answer #9 · answered by GUARD DOG 4 · 0⤊ 4⤋