Discussion
The oldest life form recorded anywhere in world are ......................
Answer: B
Of the options, the oldest life forms are the stromatolites of the Barberton Greenstone Belt of South Africa.
The Barberton Greenstone Belt contains some of the best preserved early Archaean rocks, and its cherts and carbonates carry stromatolites and microfossils over 3.3 billion years old, among the oldest accepted traces of life anywhere. (Some claims from Western Australia and Greenland are older, but they are not among the options.)
The other options are far younger: Vindhyan stromatolites and trace fossils are Proterozoic, the Jhamarkotra stromatolites of the Aravalli Group are Palaeoproterozoic (about 2 billion years), and the Karewa beds of Kashmir are Plio-Pleistocene.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development