Q. 180 degree longitude is also known as _ ___?
Answer: International Date Line
Notes: The 180th meridian or anti meridian is the Prime Meridian. It is known as the International date line. It is with which it forms a great circle dividing the earth into the Western and Eastern Hemispheres. It is common to both east longitude and west longitude.

This Question is Also Available in:

हिन्दी
Question Source: 📚This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India. Download the app here.
📌 Question Number: 20 in Geology - Earth Movements, Latitude, Longitude and Time in the above course in App.