A line of thunderstorms that forms ahead of an advancing cold front is called a ____.

A line of thunderstorms that forms ahead of an advancing cold front is called a ____.
 A) squall line
  B) wall cloud
  C) gust front
  D) dry line

Question 2

Dry haze scatters more sunlight than wet haze and causes a more noticeable drop in visibility.
  Indicate whether the statement is true or false

Question 3

Radiation is made of discrete packets of energy called ____.
 A) thermals
  B) convective cells
  C) photons
  D) microns

Question 4

A small thunderstorm cloud blowing dust at the ground could warn of a severe hazard to aircraft. Why?
 A) This could be the first indication of a tornado.
  B) This indicates that it is likely that hail will soon begin to fall.
  C) This could indicate an intense downdraft or microburst.
  D) The airplane could be struck by lightning.

Question 5

Particles with diameters less than one micrometer can remain suspended in the atmosphere for several weeks.
  Indicate whether the statement is true or false

Question 6

The absolute temperature scale that contains no negative numbers is the ____, which makes it convenient for scientific computing.
 A) Fahrenheit
  B) Celsius
  C) Kelvin
  D) Convection

Question 7

A relatively narrow downburst, less than four kilometers wide, is called a ____.
 A) microburst
  B) macroburst
  C) funnel cloud
  D) mesocyclone

Question 8

Erosion of many limestone buildings, fountains, and sculptures is being caused largely by ____.
 A) acid rain
  B) ozone
  C) vibrations caused by automobile traffic
  D) urban heat island