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Fossils that are the most useful for correlation tend to be found in various types of rocks, are widespread, and easy to recognize. One rock type where fossils are found is sedimentary rocks.
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Why are fossils most likely to be found in sedimentary rock samples?
Most fossils are found in sedimentary rock, because igneous and metamorphic rock undergo great heat and pressure when forming, where as sedimentary rocks undergo much less pressure and heat to form, better preserving the fossil
Would you be less likely to find fossils in metamorphic rock than a sedimentary rock?
Metamorphic rock can contain fossils, but since these rocks form under intense heat and pressure where stone flows something like taffy, the fossils will be highly degraded and distorted.Sedimentary rock forms when layers of silt are Why_are_you_less_likely_to_find_fossils_in_metamorphic_rock_than_sedimentary_rockon the bottom of a body of water. When conditions are right, layers form quickly and are not disturbed and little oxygen is present, dead creatures that fall on that bottom can become entombed in preserved at the layers are increasingly compressed, eventually cementing into rock.
How do paleontologists know how old fossils are?
The dating of fossils was originally done by their placement in a geologic column of rock strata. Because of the Law of Superposition, the deeper the stratum, the older it is (in an undisturbed body of rock or sediment). Fossils which were evident in a particular stratum, but missing from other strata were noted as "index" fossils. The presence of these fossils indicated the age of the stratum relative to other layers. The layers of stratum were placed in a geologic column, subdivided, and assigned names based on the presence of different types of fossil organisms.This is the basis of "relative dating" of rock layers and fossils, a dating technique that was in effect until the advent of radiometric techniques in the twentieth century.
When gaseous molecules are compressed they tend to?
They tend to change density, temperature or energy.
Why do students find science subjects difficult?
Because they tend to byheart it.If they learn science by reasoning and thinking it will be the most interesting subject that they would ever find.
Archaeologists tend to find fossils most often embedded in which type of rock?
Sedimentary rock layers
When the points on a graph tend to scatter randomly you say they indicate?
No Correlation
What does it mean if two variables have a positive correlation?
If the correlation is positive, as one increases so does the other.
When the points on a graph tend to scatter randomly we say that they indicate .?
That there is no correlation of the collected data.
Fossils in newer layers of the earth tend to resemble current?
organisms
When the points on a graph tend to go upward from left to right thay indicate?
a positive correlation
When the points on a graph tend to go upward from left to right you say they indicate?
a positive correlation
What type of correlation would be expected between shoe size and grade point average?
I would expect a mild negative correlation. Girls tend to have smaller feet and so smaller shoe sizes and they tend t o score better at school.
Is there a correlation between?
Alcoholics tend to consume more alcohol than do others, although that does not define Alcoholism.
What is so nice about fossils that have been encased in amber or ice?
They do not decompose as quickly as other fossils, so tissue and other soft parts tend to be preserved.
Is there a correlation between alcoholism?
Alcoholics tend to consume more alcohol than do others, although that does not define alcoholism.
When the data points on a graph tend to go up as they go to the right there is between the two variables?
Positive correlation
