What is the difference between smog and fog . Give two effercs of smog . I t is effercs not effects
Answers
Explanation:
Though they look the same, smog and fog are formed quite differently. Smog is a form of air pollution, resulting from chemical toxins dispersed into the atmosphere whereas fog is the accumulation of floating water droplets in the air.
Smog can cause or aggravate health problems such as asthma, emphysema, chronic bronchitis and other respiratory problems as well as eye irritation and reduced resistance to colds and lung infections. The ozone in smog also inhibits plant growth and can cause widespread damage to crops and forests.
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Answer:
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Explanation:
Fog
Fogs are composed of water droplets, which disperse light and reduce visibility near the earth’s surface. Fog layers form when moist air is cooled to its dew point (or saturation point). There are several different types of fog, which are formed under varying circumstances.
Radiation fog typically forms at night when surface heat is radiated into space. As the earth’s surface cools, the air reaches complete humidity, which then turns into fog.
Advection fog closely resembles radiation fog, but is formed when warm moist air moves horizontally over a cold surface, causing condensation. One common type of advection fog is sea fog, which occurs when air from warm currents drifts over cold currents.
Unslope fog forms in higher elevations, such as mountains or hills. Winds push moist air up a slope to a point where the air begins to condensate, forming fog. Unslope fog can be very expansive, often covering entire mountain ranges.
Ice fog is formed from ice crystals. As the name suggests, ice fog forms when the air temperature is below freezing.
Freezing fog is composed of “supercooled” water droplets, which change from liquid to ice upon surface contact. Objects exposed to freezing fog are often covered in an ice layer.
Smog
In the early 20th century, smog originated as a blend of smoke and fog. In 2011, it is defined as mix of ground-level ozone and other pollutants. Ground-level ozone, unlike the earth’s elevated ozone layer, can cause choking, coughing and other health problems.
Smog forms when organic compounds and nitrogen oxides chemically react with sunlight to create ozone. These pollutant compounds often come from automotive exhaust, factories, power plants and even your hairspray.
Effects of Smog
Smog is linked with automobile traffic, sunlight and mild winds. Extremely warm and sunny days expedite smog formation; the longer the warm air remains stagnant near the surface, the longer the smog is bound to stay.
Most major cities experience smog, especially in areas of heavy automobile traffic, such as Los Angeles. In addition to harming the environment, smog causes breathing ailments, asthma, lung infections and eye irritations. Smog also damages plants and forests.