three fossils are found in undisturbed layers of rock, or strata. Fossil A is closest to the earth surface. Given this limited data, what assumptions can you make about these fossils? Solution Ans. A fossil forms when a mud/sand/clay is deposited over a deceased organism overtime. In due course, more and more soil particles are deposited over the previous one, forming layers or strata. So, the recent (newest one) layer of soil remains at the top towards the earth surface, while the oldest layer (in which organism buried) lies at the bottom (farthest deep from earth surface). As a result, the dead organism faces gradually increasing high pressure due to deposition of additional strata. The soft parts decay first, the hard parts (say, bones) being impressed in the highly-compressed soil- thus forming fossils. With the limited information, it can be concluded that fossil A is the newest one (dies most recently) because it is present in the a strata closet to Earth surface..

1. three fossils are found in undisturbed layers of rock, or strata. Fossil A is closest to the earth
surface. Given this limited data, what assumptions can you make about these fossils?
Solution
Ans. A fossil forms when a mud/sand/clay is deposited over a deceased organism overtime. In
due course, more and more soil particles are deposited over the previous one, forming layers or
strata. So, the recent (newest one) layer of soil remains at the top towards the earth surface, while
the oldest layer (in which organism buried) lies at the bottom (farthest deep from earth surface).
As a result, the dead organism faces gradually increasing high pressure due to deposition of
additional strata. The soft parts decay first, the hard parts (say, bones) being impressed in the
highly-compressed soil- thus forming fossils.
With the limited information, it can be concluded that fossil A is the newest one (dies most
recently) because it is present in the a strata closet to Earth surface.