Unscramble the letters to form geographical terms and name the following features shown on a diagram: Longest parallel, Meridian marked as 0°, and specific parallels at given degrees North and South.

B. Unscramble the following letters.

1. EUQTAOR: EQUATOR
2. ELOP: POLE
3. RDIG: GRID
4. XSAI: AXIS

C. Name the following.

1. Longest parallel: Equator
2. Meridian marked as $0^\circ$: Prime Meridian
3. The parallels marked on the following diagram:
   • $90^\circ N$: North Pole
   • $60^\circ N$: Arctic Circle (or just $60^\circ N$ parallel)
   • $23\frac{1}{2}^\circ N$: Tropic of Cancer
   • $0^\circ N/S$: Equator
   • $23\frac{1}{2}^\circ S$: Tropic of Capricorn
   • $66\frac{1}{2}^\circ S$: Antarctic Circle
   • $90^\circ S$: South Pole