Q.4 Scientists discovered many fossils in the sedimentary rocks in a place. Which fossil do you think will be older—those in the top layers or those in the bottom layers? Why?
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Answered by
14
Answer:
I think the fossils which are in the bottom layers must be more and more older than the fossils present in the top layer because the services are being covered and covered by the top layer and therefore the bottom layer fossils are more older...
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3
Answer:
GEOLOGICAL ANS
In the normal case ,the oldest fossil will be seen
in the bottom of the SR.( if it is a undisturbed sr ).
This principle is called Principle of super
position .It was proposed by Nicholas steno .
_____D_ (younger fossil) top
_____C_ |
_____B__ |
_____A__(oldest fossil)bottom
Assume ABCD as SRLayers
sometimes ,these principle are not applicable. Because the sedimentary rock may disturbed ,the actual term for that is 'unconformity'.
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