Question

The bedrock cross section below contains rock formations A, B, C, and D. The rock formations have not been overturned.

Which sequence represents the relative ages of
these rock formations, from oldest to youngest?
(1) B → A → C → D
(2) B → D → C → A
(3) D → C → A → B
(4) D → B → A → C

Answer 1

based on the picture,
The sequence that represent the relative ages of the rocks formations from oldest to youngest would be :
3. D - C - A- B
The oldest could be formed up to 3.8 billion years ago

hope this helps