M 1 2 3 4 10,000 bp 3,000 bp 1,000 bp 250 bp

Q: A paleontologist estimates that when a particular rock formed, it contained 12 mg of the radioactive…

A: Earlier, paleontologists were only able to understand biological succession, they weren't aware of…

Q: In the shale unit, you find the following fossil: What is the mode of preservation of this…

A: A Fossil is a preserved remains of an organism, its impression, or its traces. The organism when…

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: Explain why it is difficult to use carbon-14 dating on 100-million-year-old dinosaur fossils

A: Carbon dating is a technique used for the determination of the age of an object which contains…

Q: a direct outcome of the formation of the Moon according to the giant impact theory?

A: The giant impact theory suggests that the Moon formed out of the debris left over from a collision…

Q: underground into hardened rock. melted rock is READING Diagrans called magma. What causes a…

A: Rocks forms the important part of the earth. The cycle of rock formation is evident as it helps in…

Q: Which of the following is a naturally occurring red mineral used symbolically by modern humans in…

A:

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: Which of the following are things we would find at an archaeological site that indicate Lower…

A: Introduction Paleolithic Period, also known as the Old Stone Age, was an ancient technological or…

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: 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: 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: Fossils found in deeper layers of the Earth generally have ____ 14C than fossils found in the upper…

A: Fossils found in the deeper layer of the earth generally have which amount of 14C than fossils found…

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: How does radiometric dating work?

A: A fossil is any protected remaining parts, impression, or hint of any once-living thing from a past…

Q: Explain how researchers determine the age of ancient materials

A: the study of fossils is known as paleontology. it gives us an idea of the ancient form of life on…

Q: How were biomolecules likely to have formed on the early Earth?

A: The fundamental biochemical similarities that were observed in living organisms have developed…

Q: O Carboniferous.

A: Answer is B.  Carboniferous

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: Relative-Age Dating Absolute-Age Dating Younger 440 mya 480 mya 520 mya 545 mya Older 2. The dates…

A: Ans: C: Igneous rock layers

Q: radiometric dating

A: two isotopes of uranium are used for radiometric dating . uranium -238 decays to form lead -206 with…

Q: Given the life-style we live today, what pre-historic period gives us the ability to heat our homes,…

A: the ability to heat our homes, run our cars, and have a comfortable life was the ability of humans…

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: Cenozoic Era

A: The Cenozoic era began about 66 million years ago and continues into the present, is the third era…

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: How do metamorphic rocks form

A: The process of change in form i.e. from a type to another type occurs leads to the formation of…

Q: Adaptive Radiation

A: 28 - C  The Galápagos finches are a classic example of adaptive radiation. Their common ancestor…

Q: Which parent isotope is most useful for dating samples that are greater than 100 million years old?…

A: Radioactive decay is a process in which the unstable isotopes (natural) emit radioactive particles.…

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: 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: What's the largest unit of geologic time, lasting hundreds of millions of years? A. Era B. Eon C.…

A: INTRODUCTION Largest unit of geolic time lasting hunderds of millions of year are Eons.

Q: Directions: Using the Geologic Time Scale, copy and complete the table below by supplying the blank…

A: Paleozoic era The era of ancient life began around 544 million years ago, when creatures formed hard…

Q: In undisturbed sedimentary rock, strata from the _ period are immediately below rocks from the…

A: Relative dating is the science of interpreting the relative order of events that occurred in the…

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: atch the number in the image below to the correct structure. 2 12 11 4 10 5 9 8. 3. 6.

A: Answer:  RESPIRATORY SYSTEM = It is the system which includes the respiration and breathing through…

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: Describe the kinds of evidence about the history of life that canbe found in sedimentary rock…

A: Different types of living one's lives on the earth.After they died their deposits are accumulated on…

Q: Geologists searching for clues to the ancestors of modern-day vertebrate land animals should look in…

A: Fossils are defined as the remains or impression of living things that were once livings in the…

Q: How did the work of geologists such as James Hutton and Charles Lyell influence Darwin? Edit View…

A: Evolution is the change in the characteristics of a species over several generations and relies on…

Q: First is the occurrence of (1) found in geologic strata. Write the answer for #1

A: Introduction Strata are layers of rock, it forms during sediment deposition, that is, the laying…

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: Describe the conditions on Earth 4.5 billion years ago

A: Evolution is the process of slow gradual change over a period of time. The process of evolution…

Q: 19.Approximately how old is earth? Group of answer choices a.about 4.567 billion years b.about a…

A: Fossils are dead plants and animals that have been preserved in sedimentary rock or other crust…