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Q45 (CDS-II/2023) Geography › Maps & Locations › Thematic map skills Answer Verified

Which of the following pairs of Isolines and its properties are correctly matched? 1. Isonif : Snowfall 2. Isohel : Sunshine 3. Isohaline : Salinity 4. Isophyse : Cloudiness

Result
Your answer: —  Â·  Correct: A
Explanation

Isolines are essential tools in geography for representing equal values of various parameters. Isonif (or isoniph) is a line connecting points with equal amounts of snowfall. Isohel represents points receiving equal amounts of sunshine. Isohaline is a standard term used in salinity distribution maps to join places having an equal degree of salinity. The fourth pair is incorrectly matched; 'Isophyse' is not a standard term for cloudiness. The correct isoline for cloudiness is an 'Isoneph'. While the provided snippets define general isolines like isobars (pressure) and isotherms (temperature) [1], and discuss the use of isohalines in marine contexts, standard geographical nomenclature confirms that Isonif, Isohel, and Isohaline are correctly paired with snowfall, sunshine, and salinity respectively, whereas cloudiness is represented by isonephs.

Sources

  1. [1] Environment and Ecology, Majid Hussain (Access publishing 3rd ed.) > Chapter 12: Major Crops and Cropping Patterns in India > Biotic: Living > p. 113
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