Which of the following techniques examines the decay of carbo an object? O A. Radiometric dating O B. Mesozoic dating O C. Relative dating O D. Precambrian dating
Q: 1. Which statement is NOT a principle or relative-age dating? sc.7.E.6.3 A Layers of sediment are…
A: Relative dating is the procedure that is performed for finding out the age of a particular object by…
Q: A scientist discovers something new about the composition of the mantle. What type of rock (group)…
A: The mantle is the part of the earth between its crust and its core.
Q: Which of these did Stanley Miller place in his experimental systemto show that organic molecules…
A: Answer- S.L. Miller experiment concluded the thoery of chemical evolution. He used all the inorganic…
Q: Which statement accurately describes the geologic The diagram shows cross-cutting relationships…
A: Cross-cutting relationships are when a geologic feature like igneous intrusion breaks other…
Q: Whose discovery made the dating of ancient materials possible?
A: Radiocarbon dating works by comparing the three different isotopes of carbon. Isotopes of a…
Q: what is a mold? A. the imprints from an organism can be a shell or the skin of an animal B. Molds…
A: Fossils are the preserved remains of the organisms that die. The palentologists deal with two basic…
Q: What is examined to do relative dating? O A. Layers of sediment O B. Uranium deposits O c. Carbon-14…
A: Answer- Relative dating is the process by which layers of sediments including fossils are studied to…
Q: Compare and contrast Relative dating, Absolute dating, and Radiometric dating.
A: Every preserved bones, impression, or residue of a once-living thing from a previous geological…
Q: Which of the following did Stanley miller place in the experimental system to show that organic…
A: Stanley Miller and Harold Urey's experiments reported evidence of chemical evolution or Chemogeny.…
Q: Radiometric decay of carbon-14 would be used in dating sedimentary rock. a trace fossil. an insect…
A: Radiometric decay is a method dating substances of possible majority of organic content. Principle:…
Q: Using the principles of relative dating, put the rock layers, faults, and igneous intrusions in a…
A: Relative dating is the science of interpreting the relative order of events that occurred in the…
Q: 69. Theoretically, radiocarbon dating (Carbon-14) can date materials that are at most 1.31…
A: Radiocarbon dating (also known as carbon dating or carbon-14 dating) is a method of determining the…
Q: One benefit of the fossil record isa. that hard parts of bodies are more likely to fossilize.b. that…
A: Fossils are remains of organisms from the past that have been preserved in the different layers of…
Q: Volcanic ash can be used to date fossil finds because each time it is expelled by an eruption it has…
A: The answer is True
Q: What was the fossilization process for the dinosaur bone in this sample? O A. preserved as is O B.…
A: Fossilization makes animals and plants fossil.
Q: Which method is used to assign numerical ages to events or materials? absolute dating half-life…
A: By measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure…
Q: M 1 2 3 4 10,000 bp 3,000 bp 1,000 bp 250 bp
A: On the lane 4 , When the DNA appears as a messy , continuous band at the bottom rather than a…
Q: Radiometric dating uses the decay of to to determine how old fossils of…
A: Radiometric dating determines the age of historical objects in years via measuring the occurrence of…
Q: How is sediment used for dating? O A. The newest layer is most radioactive. O B. The newest layer is…
A: Fossils are the evidences for the history of the life on earth, the remains of a organism or any…
Q: radiometric dating
A: two isotopes of uranium are used for radiometric dating . uranium -238 decays to form lead -206 with…
Q: The most useful method for dating ancient calcium rich cave deposits would be Group of answer…
A: Answer :- Option (D) is correct. - Uranium-Thorium Dating.
Q: what element rise that caused the diversification event in evolution of earth
A: Introduction : The rise in oxygen, which is termed the Great Oxygenation Event is an important event…
Q: an abundance of ______________ in earth's early atmosphere would have interfered with assembly of…
A: Organic molecules are molecules found in all the living organisms. These molecules are formed by a…
Q: Give the stratigraphic arrangement of rock layers as shown below, the circles represent places where…
A: The correct answer is option: B The therapsids are believed to be present between the Carboniferous…
Q: Rock strata with fossils Which organism is most recent? a b d a
A: Fossils These are defined as the remains of organisms such as plants, animals, single-celled living…
Q: All of the following materials can be radiocarbon dated except Group of answer choices A: Seeds B:…
A: Radiocarbon dating It is a method that provides objective age estimates for carbon based materials…
Q: Which of the following is not thought to have been a source of organic molecules on early Earth?* O…
A: Cosmic dust
Q: Which of the following has not been a major objective of Marsexploration?a. to analyze elements in…
A: Mars exploration is done by NASA to find the prospects of life on Mars.
Q: Which of the following are useful for reconstructing ancient environments? Group of answer choices…
A: Option 1 is correct because glacial ice contains dust, air bubbles, or isotopes of oxygen that can…
Q: Radiometric dating ... Group of answer choices A: is based on the scientific observation that…
A: Answer E) all of these answers are true
Q: Radioisotopes are useful in dating fossils and rocks because
A: Fossils They are remains of animals which are preserved in ice or in deep underground or inside…
Q: Match each material with its most suitable description. ___ limestone a. extracted from kelps…
A: Limestone is a form of carbonate sedimentary rock that is very common. The minerals calcite &…
Q: Which staterment from the choices below, BEST describes scientists current understanding of the…
A: Methane, ammonia, water vapour, and the noble gas neon were abundant in Earth's initial atmosphere,…
Q: Fossil films made by ______ are usually black or dark brown.
A: Fossils -- Term fossil refers to any trace of past life . It can be defined as organism remains such…
Q: Radiometric dating _______. has a substantial error factor can only be used for dating animal…
A: Radiometric dating is a method of dating geological specimens by determining the relative…
Q: Figure 5 illustrates the distribution of fossils in undisturbed layers of silt at the bottom of the…
A: Fossils are the remnants of the living organisms that lived in past. The parts of organisms like…
Q: Suppose a scientist finds a rock with an interesting fossil. Curious to know the age of the fossil,…
A: As per the data given, the Rb-Sr isochron equation is - ( 87Srt /86Srt ) = ( 87Sr0 / 86Sr0 ) + (…
Q: Which of the following evidence was used by Wegener to support his hypothesis that the conti- nents…
A: Alfred Wegener is a German scientist who proposed a hypothesis called Continental drift in the early…
Q: A. How old is the Earth? B. How long did the longest eon (so far) last? C. How many years ago did…
A: Epoch is longer than era. Eon is the longest period of geological time.
Q: One problem in radiocarbon dating of biological samples, especially very old ones, is that they can…
A: Radioactive carbon dating is the process of determination of the approximate age of an ancient…
Q: Which item is best dated using the potassium-argon (K-Ar) method? Group of answer choices A: Cave…
A: The slow decay of potassium 40 into argon is very useful for dating rocks, such as lava, whose age…
Q: scientist has a fossil that was found in a layer of rock close to Earth’s surface. He believes that…
A: Fossils are the material remains (bones, teeth, shells) or traces (physical or chemical) of ancient…
Q: Radiometric dating ... All of these answers are true O provides an accurate means of determining the…
A: Radiometric dating Technique used to date materials such as rocks by observing the abundance of…
Q: 3. You are surveying an area's rock layers using absolute dating. You have an element whose…
A: Several dating methods are used to find the age of rocks and fossils. The methods include…
Q: What type of plates that float on top of the mantle do scientist believe that the Earth's crust is…
A: The earth is made up of different layers: 1)The Inner core- It is the inner and hottest layer of the…
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- What kinds of tool artifacts were found in the cave near Denisovan specimens? A. Lithic cores B. Levallois cores C. Oldowan Choppers D. Both A and B E. Both A and CAccording to " Denisovans: Decoding the Secrets of Our Mysterious Ancient Cousins”, what kinds of tool artifacts were found in the cave near Denisovan specimens? A.Lithic cores B.Levallois cores C.Oldowan Choppers D.Both A and B E.Both A and CRadiometric dating uses the decay of to to determine how old fossils of biological material are using the rate of decay. Group of answer choices 14C, 12C 14N, 12C 12C, 14N 14C, 14N
- 1. Fossils are remains of ancient organisms found in the rocks are categorized depending on their age. How do researchers determine the fossil’s actual age? a. absolute dating b. relative dating c. structural dating d. precise age datin 2.Which of the following is NOT true for relative dating methods: A. Relies on observational skills B. Includes stratigraphy which is based on ordered layers that build up over time C. Determines if one artifact or fossil is older than another D. Gives you specific dates of the artifact or fossilThe most useful method for dating ancient calcium rich cave deposits would be Group of answer choices A: Argon-Argon Dating B: Paleomagnetic Reversals C: Electron Spin Resonance Dating D: Uranium-Thorium Dating E: Potassium-Argon Dating
- Relative dating of sedimentary rocks allows scientists to assign specific dates to fossils. True O FalseScientists find an artifact next to an index fossil. What can they conclude about the unknown age of the artifact? a The artifact is older than the index fossil. b The artifact is younger than the index fossil. c The artifact is approximately the same age as the index fossil. d The artifact's age is not related to that of the index fossil.When was the first mass extinction? A. At the end of the Ordovician B. During the Mesozoic era O C. At the start of the Ordovician period D. None of the above E. During the Triassic era
- Which of the following was not present by the end of Precambrian? a. archaea c. fungi b. bacteria d. fishIn which type of rock are you more likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of calcium carbonate sediments c. slate, a volcanic melted and cooled shale d. granite, which forms by crystallization of molten rock below the surface of the EarthThe fossil record (a) usually occurs in sedimentary rock (b) sometimes appears fragmentary (c) is relatively complete for tropical rainforest organisms but incomplete for aquatic organisms (d) a and b (e) a, b, and c