TLS Online TPP Program

#Question id: 40215


Match the geological eons/events in List I with the biological milestones in List II.

List I (Time Period/Event)List II (Biological Milestone)
A. 4.0 - 3.8 Billion years agoI. Appearance of first Eukaryotes
B. 3.5 Billion years agoII. Oxygen Revolution (Great Oxidation Event)
C. 2.7 - 2.5 Billion years agoIII. Appearance of first cellular life (Prokaryotes)
D. 2.0 - 1.5 Billion years agoIV. Formation of life precursors (RNA/Protocells)

#Environmental Science
  1. A-III, B-IV, C-I, D-II
  2. A-IV, B-III, C-II, D-I
  3. A-I, B-II, C-III, D-IV
  4. A-II, B-I, C-IV, D-III