Carbon dating is relatively accurate back to 50000 years. Older samples require either special preparations of...
Carbon dating is relatively accurate back to 50000 years. Older samples require either special preparations of C-14 or a different atomic isotope needs to be used. Explain why carbon dating is only accurate with samples that are 50000 years old or younger.
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Carbon dating is relatively accurate back to 50000 years. Older
samples require either special preparations of...
1. The half-life of carbon-14 is 5730 years. A sample is found to have one-eighth the...
1. The half-life of carbon-14 is 5730 years. A sample is found to have one-eighth the original amount of carbon-14 in it. How old is the sample? 5730 years, 716 years, 45800 years, 17200 years 2. Why wouldn't you use carbon-14 dating on a piece of shell that was estimated to be 1 million years old? Sea shells do not have radioisotopes, carbon dating is only useful on plants, uranium dating is better for items older than 1/2 million years,...
Based on radiometric dating of meteorites/asteroids, how old is the Earth? a. 65 million years old...
Based on radiometric dating of meteorites/asteroids, how old is the Earth? a. 65 million years old b. 4.6 million years old c. 65 billion years old d. 4.6 billion years old 2. A break in time in continuous sedimentary rock layers that is due to erosion is called? a. Siccar Point b. Contact c. Unconformity d. Eon 3. What do we use to numerically date rocks? a. Radioactive isotopes b. Minerals c. Fossils d. Acid 4. Regarding principles used to...
please hep. The phrase, "The present is the key to the past," refers to the doctrine...
please hep.
The phrase, "The present is the key to the past," refers to the doctrine of What is the name of a Phanerozoic era that represents the age of mammals? Fossils used for matching rocks of the same age are called Dinosaurs lived during the The remains or traces of prehistoric life are called In an un-deformed sequence of sedimentary rocks, each bed is older than the one above and younger than the one below. The preceding is a...
2) Populations versus samples. For each statement, answer with either population, sample, or both. A) The compl...
2) Populations versus samples. For each statement, answer with either population, sample, or both. A) The complete set of information. B) A portion, not all, of the information. C) Has the potential to be biased or misleading. D) Measured or summarized with parameters. E) Measured or summarized with statistics. 3) Descriptive versus inferential statistics. For each statement, answer with either descriptive or inferential statistics. A) Facts about samples. B) Educated guesses about populations based on samples. C) The world population...
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a...
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a suitable bond between the two parts being joined. There are a number of conventional and commercially practiced welding processes, which possess limitations in relation to material type and thickness, and in addition, the cost analysis may not allow for a process to be used on a specific application. The selection of suitable welding consumable (electrode or wire) is also an important factor in producing...
CASE STUDY (Mark 202-10 Wepending on the your understanding of the communication purposes and the more...
CASE STUDY (Mark 202-10 Wepending on the your understanding of the communication purposes and the more and importance of effective communication in a business setting. Read the case given bellow and answer the following questions Barry and Communication Barriers Effective Communication as a Motivator One common complaint, employees voice about supervisors is inconsistent messages - meaning one supervisor tells them one thing and another tells them something different. Imagine you are the supervisor manager for each of the employees described...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that time, have they been able to develop an understanding of human gestures such as pointing or glancing? How about simi lar nonhuman cues? Researchers Udell, Giglio, and Wynne tested a small number of dogs in order to answer these questions. In this exploration, we wll first see whether dogs can understand human gestures as well as nonhuman gestures. To test this, the researchers positioned...
My topic is diabetes 597690/viewContent/7888874/View The Science of Popular Diets The Impact of Nutrition Practices on...
My
topic is diabetes
597690/viewContent/7888874/View The Science of Popular Diets The Impact of Nutrition Practices on Human Wellness Understanding the Dietary Needs of Special Populations Consider that up until this point in Module 2, we have been focused on the nutritional needs and diet plans for healthy, adult individuals. The AMDRS used to calculate caloric needs have been determined to fit a general population of these individuals. In addition, there has been little need to consider deficiencies or toxicities of...
I have an Assignment of Marketing Research on Climate Change. Where i have to take an...
I have an Assignment of Marketing Research on Climate Change. Where i have to take an interview of an industry professional, which is done. I have all answer what he said, now i just need to analysis all answer into sub category which are as follow: - 1. Level of Concern of Professionals 2. Impacts on Industry 3. Awareness of Millennials' Knowledge 4. Attitudes Among Millennials If you think any other category could be included please add it. i have...
1-Summarize the article briefly in your own words. 2-Explain the main theme of this case and...
1-Summarize the article briefly in your own words. 2-Explain the main theme of this case and its implications for the future of forensic science. 3-Several genealogy sites (including ancestry.com, 23andme.com, familytreedna.com, findmypast.com) were used in this case -- do you believe that law enforcement should have access to these databases as a standard practice? Why or why n Article How a Jane Doe child case uncovered a serial killer, identified victims and changed the use of DNA forensics Investigators and...
please hep.
The phrase, "The present is the key to the past," refers to the doctrine of What is the name of a Phanerozoic era that represents the age of mammals? Fossils used for matching rocks of the same age are called Dinosaurs lived during the The remains or traces of prehistoric life are called In an un-deformed sequence of sedimentary rocks, each bed is older than the one above and younger than the one below. The preceding is a...
2) Populations versus samples. For each statement, answer with either population, sample, or both. A) The complete set of information. B) A portion, not all, of the information. C) Has the potential to be biased or misleading. D) Measured or summarized with parameters. E) Measured or summarized with statistics. 3) Descriptive versus inferential statistics. For each statement, answer with either descriptive or inferential statistics. A) Facts about samples. B) Educated guesses about populations based on samples. C) The world population...
CODE 102_8 Welding Many welding processes require the application of heat and/or pressure to produce a suitable bond between the two parts being joined. There are a number of conventional and commercially practiced welding processes, which possess limitations in relation to material type and thickness, and in addition, the cost analysis may not allow for a process to be used on a specific application. The selection of suitable welding consumable (electrode or wire) is also an important factor in producing...
CASE STUDY (Mark 202-10 Wepending on the your understanding of the communication purposes and the more and importance of effective communication in a business setting. Read the case given bellow and answer the following questions Barry and Communication Barriers Effective Communication as a Motivator One common complaint, employees voice about supervisors is inconsistent messages - meaning one supervisor tells them one thing and another tells them something different. Imagine you are the supervisor manager for each of the employees described...
Can Dogs Understand Human Cues? EXPLORATION Dogs have been domesticated for about 14,000 years. In that time, have they been able to develop an understanding of human gestures such as pointing or glancing? How about simi lar nonhuman cues? Researchers Udell, Giglio, and Wynne tested a small number of dogs in order to answer these questions. In this exploration, we wll first see whether dogs can understand human gestures as well as nonhuman gestures. To test this, the researchers positioned...
My
topic is diabetes
597690/viewContent/7888874/View The Science of Popular Diets The Impact of Nutrition Practices on Human Wellness Understanding the Dietary Needs of Special Populations Consider that up until this point in Module 2, we have been focused on the nutritional needs and diet plans for healthy, adult individuals. The AMDRS used to calculate caloric needs have been determined to fit a general population of these individuals. In addition, there has been little need to consider deficiencies or toxicities of...
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