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If you examine a rock sample and observe fossils in it what type of rock does the sample represent?
Fossils are only found in rocks that are laid down on the surface of the Earth. The majority of fossiliferous rocks are therefore sedimentary BUT fossils are also occasionally found in lava flows (igneous rocks) - eg lava trees and in some metamorphosed sedimentary rocks (metamorphic rocks) - eg the "delabole butterfly"
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An understanding of which of these best enabled scientists to determine the approximate ages of fossils?
The understanding of radioactive decay, specifically carbon dating and other radiometric dating methods, has enabled scientists to determine the approximate ages of fossils by measuring the decay of isotopes within the fossils. This process allows scientists to estimate the age of fossils based on the ratio of isotopes present in the sample.
What do geologists observe when studying a rock sample?
Geologists observe the color, texture, mineral composition, and structure of a rock sample to determine its formation process, age, and geological history. They may also conduct tests to analyze the chemical composition and physical properties of the rock.
How do trace fossils differ from index fossils?
Trace fossils are any evidences that an organism existed, including footprints, trails, burrows, chemical marker, and fossilized dung.Index fossils are those that are only found in a specific range of geologic time, and are used to quickly determine the age of a sedimentary rock sample.
How does carbon dating help scientists determine the age of ancient artifacts and fossils?
Carbon dating is a method used by scientists to determine the age of ancient artifacts and fossils by measuring the amount of radioactive carbon-14 remaining in the sample. This is possible because carbon-14 decays at a predictable rate over time, allowing researchers to estimate the age of the sample based on the amount of carbon-14 present.
Dating technique involving compraring fossils in rock layers?
Relative dating-comparing fossils related to how old other fossils are in the same sample of rock. If the rock has been undisturbed, the oldest rock will be at the bottom, therefore, the oldest fossils will also be at the bottom. the youngest rock will be at the top, therefore, the youngest fossils will be at the top. Absolute Dating-When you can figure out through testing the exact age of the fossil
If you examined a rock sample and observe fossils in it what type of rock does the sample represent?
Fossils are only found in rocks that are laid down on the surface of the Earth. The majority of fossiliferous rocks are therefore sedimentary BUT fossils are also occasionally found in lava flows (igneous rocks) - eg lava trees and in some metamorphosed sedimentary rocks (metamorphic rocks) - eg the "delabole butterfly"
Samplea sample that does not fairly represent the population?
Biased sample
What is sample universe?
A sampling universe is what a sample is intended to represent.
What is a biased sample?
A biased sample is a sample that is not random. A biased sample will skew the research because the sample does not represent the population.
What is the Correct procedure for handling sample of pond water?
place the sample on the microscope slide and observe it.
What is a biased?
A biased sample is a sample that is not random. A biased sample will skew the research because the sample does not represent the population.
What will happen if the sample you have drawn from the population does not represent the population?
You are studying the sample because you want to find out information about the whole population. If the sample you have drawn from the population does not represent the population, you will find out about the sample but will not find out about the population.
A scientist studying humus would most likely examine a sample of what?
Soil
Sample of use case diagram represent the business process of GeneralMotors?
sample of use case diagram represent the business process of GeneralMotors
Does a Quota Sample represent the whole population?
yes because the quota sample include the random sample and when we have over estimation we will use the quota sample
What two features must a sample have if its to accurately represent a population?
The sample must be large and random.
A subset of a population selected to represent the population is a?
sample
