Concept:In meteorology and map reading, lines drawn to join places of equal atmospheric conditions are given special names.
The term for cloudiness is derived from the Greek word "nephos", meaning cloud.
Explanation:An
isoneph joins places that record the same degree of cloudiness.
Each of the other options refers to a different weather element.
An
isohyet joins places with equal rainfall.
An
isobar joins places with equal atmospheric pressure.
An
isotherm joins places with equal temperature.
The question specifically describes equal cloudiness.
Cloudiness is measured in oktas or tenths of the sky covered.
Therefore, the correct map line is an isoneph.
Answer:A. isoneph