Which of the following is not correctly matched ?

The Tropic of Cancer is incorrectly matched in the options. According to geographical standards, the Tropic of Cancer is located at approximately 23.5° N (or 23°26′ N) latitude in the Northern Hemisphere [2]. The coordinate 23.5° S actually refers to the Tropic of Capricorn [2]. Other options are correctly matched: the Prime Meridian is the 0° longitude line passing through Greenwich [3], and the International Date Line roughly follows the 180° longitude line [5]. The Arctic Circle is correctly identified at 66.5° N (or 66°33′ N) latitude [2]. Therefore, option 4 is the only incorrect pairing as it assigns a Southern Hemisphere coordinate to a Northern Hemisphere parallel.

Sources

1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 18: Latitudes and Longitudes > 18.3. Comparison: Latitude vs. Longitude > p. 250
2. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 18: Latitudes and Longitudes > Important Parallels of Latitudes > p. 240
3. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 18: Latitudes and Longitudes > 18.2. Longitude or Meridian > p. 242
4. [4] Exploring Society:India and Beyond. Social Science-Class VI . NCERT(Revised ed 2025) > Chapter 1: Locating Places on the Earth > DON'T MISS OUT > p. 16
5. [5] Exploring Society:India and Beyond. Social Science-Class VI . NCERT(Revised ed 2025) > Chapter 1: Locating Places on the Earth > Before we move on ... > p. 24