ASSIGNMENT 5 Textbook Assignment:    “Atmospheric Phenomena” (continued); “Climatology and World Weather.”   Chapters 5 and 6, Pages 5-6 through 6-6. 5-1. Which of the following facts about fog is incor- rect? 1. Fog is most easily described as a cloud at the Earth’s surface 2. All  fogs  are  composed  of  minute  water particles only 3. Fog depth and density are quite variable 4. Local geography and topography can play a major role in the formation and dissipation of fog 5-2. Where and when is the formation of radiation fog most common? 1. Over cold waters at night 2. Over land at night 3. Over land in the early afternoon 4. Over coastal waters in the early morning 5-3. How does wind speed affect radiation fog? 1. Calm  winds  cause  a  shallow  fog  layer  to form 2. Winds  of  5  to  10  knots  create  turbulent currents that increase the depth of the fog 3. Winds greater than 10 knots usually cause the  fog  to  lift,  thereby  forming  low  scud, stratus, or stratocumulus 4. All of the above 5-4. Which of the following conditions is most con- ducive to the formation of radiation fog? 1. Low  pressure,  light  winds,  and  overcast skies 2. Low pressure, light winds, and clear skies 3. High pressure, light winds, and clear skies 4. High  pressure,  light  winds,  and  overcast skies 5-5. What are advection fogs? 1. Fogs produced by the movement of warm air over a colder land or water surface 2. Fogs  that  form  in  the  clear  night  air  over warm waters 3. Fogs   produced   across   air   mass   frontal boundaries 4. Fogs of the tropics 5-6. Which of the following types of fog is not clas- sified as advection fog? 1. Sea fog 2. Arctic sea smoke 3. Upslope fog 4. Steam fog 5-7. Most  fog  is  destroyed  (lifted)  when  the  wind speed  over  a  fog  enshrouded  area  increases. Which of the following classifications/types of fog  is  most  likely  to  persist  in  wind  up  to  26 knots? 1. Land advection fog 2. Sea fog 3. Upslope fog 4. Radiation fog 5-8. Which of the following classifications/types of fog is most likely to occur in winter, when an arctic  outbreak  pushes  off  the  U.S.  east  coast over warm Gulf Stream waters? 1. Sea fog 2. Steam fog 3. Land advection fog 4. Radiation fog 5-9. Which of the following statements concerning frontal fog is correct? 1. Frontal  fog  is  the  result  of  evaporation  of falling rain 2. It forms in the cold air mass 3. This    fog    begins    as    low    clouds    that eventually lower to the ground 4. Each of the above 5-10. On some mornings, grass, plants, and possibly your  car  will  be  wet  with  dew  while  the  road and  some  large  objects  will  be  dry.  Why  do some surfaces remain dry? 1. Micro air temperature differences 2. Micro dew point variations 3. Some surfaces retain heat longer and fail to cool to the dew point 4. Some  surfaces  cool  far  too  fast  for  the moisture to accumulate on them 25