A cloud-to-ground lightning discharge will sometimes appear to flicker. This is because
a. you are able to see charges.
b. you are barely able to distinguish separate return strokes.
c. the bright light causes you to blink.
d. of refraction caused by turbulent thunderstorm winds.
e. your eyes momentarily get blinded by lightning.
Question 2
An important principle in one of the theories of the electrification of clouds is that
a. there is a net transfer of negative ions from a warmer object to a colder object.
b. supercooled water is always negatively charged.
c. ice crystals are always negatively charged.
d. there is a net transfer of positive ions from a warmer object to a colder object.
e. raindrops are always positively charged.
A herd of barren-ground caribou at the Thelon River. This subspecies is a long-distance migrant
A 1998 false-colour near-infrared image of Uranus showing cloud bands, rings, and moons obtained by
Temperature profile of the Uranian troposphere and lower stratosphere. Cloud and haze layers are als
Uranus's southern hemisphere in approximate natural colour (left) and in shorter wavelengths (r
Discharge coefficient, sieve plates
Cloud Types: High Clouds