Geology · Geological Time Scale
According to the international geological time scale, what is the lower boundary (start timeline) of the Orosirian Period?
- 12300 Ma
- 22050 Ma✓
- 31800 Ma
- 41600 Ma
Correct answer
2050 Ma
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Preparing for Geology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Want more practice questions on Geological Time Scale?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Geology · Geological Time Scale