No physical remains dating earlier than_____ million years ago are found with associated cultural remains. 5.7...
No physical remains dating earlier than_____ million years ago are found with associated cultural remains.
5.7
3.3
2.6
7.1
Homework Answers
No physical remains dating earlier than 2.6 million years ago are found with associated cultural remains.But as we go back in time that is before 2.6 million, the association and the remains become less likely and are found without any associate cultural activities.
Add Answer to:
No physical remains dating earlier than_____ million years ago
are found with associated cultural remains.
5.7...
At an archaeological dig, the remains of a saber-tooth tiger are found. In a carbon dating...
At an archaeological dig, the remains of a saber-tooth tiger are found. In a carbon dating ( 14C has a half-life of 5730 years) test to calculate the age of the cat, a scientist finds that the amount of 14C is about 1/32 the amount of 14C in living animals. How long ago did this saber-tooth tiger die?
5. A palaeontologist claims to have found a Woolly Mammoth fossil who lived 20,380 years ago....
5. A palaeontologist claims to have found a Woolly Mammoth fossil who lived 20,380 years ago. Carbon 14 dating reveals that 42.341% of the original 14C remains? The half-life for 14C is 5770 years. Assume the radioactive decay is first order. Should we accuse the palaeontologist of fraud? Enter your answer 6. A palaeontologist claims to have found a Tyrannosaurus Rex fossil who has lived about 70 million years ago. Uranium-235 dating has revealed that 93.3% of the original 235U...
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...
Years ago, neuroscientists discovered that forming a memory causes physical changes in the brain in which...
Years ago, neuroscientists discovered that forming a memory causes physical changes in the brain in which new synaptic connections grow between the neurons. Each time we recall a memory it gets modified when we save it. Based on this research, it was, recently, reported that psychologists have found a way to erase the emotional anxiety associated with bad memories without erasing the memories themselves. It is done by using a drug called Propanolol which changes the way a memory is...
Klingon Widgets, Inc., purchased new cloaking machinery three years ago for $4.9 million. The machinery can...
Klingon Widgets, Inc., purchased new cloaking machinery three years ago for $4.9 million. The machinery can be sold to the Romulans today for $7.1 million. Klingon’s current balance sheet shows net fixed assets of $3.7 million, current liabilities of $800,000, and net working capital of $139,000. If all the current accounts were liquidated today, the company would receive $915,000 cash. What is the sum of the market value of NWC and market value of fixed assets?
200 million years ago the level of the oxygen was approximately half the level it is...
200 million years ago the level of the oxygen was approximately half the level it is in the atmosphere today. It has been hypothesized that this led to the evolution of dinosaur respiratory systems specialized for oxygen uptake. The impact of that can be seen today in the highly efficient respiratory systems of: mammals who use tidal ventilation lizards who cannot breathe and run at the same time. birds who use airsacs to generate countercurrent exchange. amphibians who use cutaneous...
5) As you likely know, we are in the largest extinction event since the Cretaceous-Tertiary (K-T) mass extinction of 66 million years ago, in which 75% of all plant and animal species were eliminated....
5) As you likely know, we are in the largest extinction event since the Cretaceous-Tertiary (K-T) mass extinction of 66 million years ago, in which 75% of all plant and animal species were eliminated. It is widely thought that the K-T mass extinction was associated with a ca. 10 km diameter meteor strike in the Gulf of Mexico near what is now the Yucatan peninsula. The on-going mass extinction event (the Holocene or (and this is my preferred term) Anthropocene...
Please answer all bout half way up, you down 350 million years ago. Shortly backbon ind...
Please answer all
bout half way up, you down 350 million years ago. Shortly backbon ind upon closer isho tereafter, you notice something sticks laid the rock and upon closer inspection, it is clear you are 1. Lets say you are hiking up the side Pss a sign that tells you that the rock layer boundary you are looking at the fossil of the to ak bone of some kind of extinct animal. Given its age, this ba a) fish...
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered t...
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered the extinction of the dinosaurs was discovery of a thin Iridium-rich clay layer in sediments all around the world. A normal rock sample from the Earth's crust contains less than 1 nanogram per gram (or 1 part per billion) of Iridium, while the Iridium clay layer associated with the K-Pg impact contains about 3 parts per billion. (a) Assume the K-T impactor was a rocky...
014 (part 1 of 2) 10.0 points Ever since it was learned that an aster- oid hit the earth 65 million years ago and destroyed most life-forms, including the di- nosaurs, observations of new comets are...
014 (part 1 of 2) 10.0 points Ever since it was learned that an aster- oid hit the earth 65 million years ago and destroyed most life-forms, including the di- nosaurs, observations of new comets are fol- lowed with great interest! Suppose a new comet is found orbiting the sun as it is pass- ing its point of closest approach at a distance Tmin 0.658 AU (1 AU-semimajor axis (average radius) of the Earth's orbit.) Careful studies determine that its...
5. A palaeontologist claims to have found a Woolly Mammoth fossil who lived 20,380 years ago. Carbon 14 dating reveals that 42.341% of the original 14C remains? The half-life for 14C is 5770 years. Assume the radioactive decay is first order. Should we accuse the palaeontologist of fraud? Enter your answer 6. A palaeontologist claims to have found a Tyrannosaurus Rex fossil who has lived about 70 million years ago. Uranium-235 dating has revealed that 93.3% of the original 235U...
200 million years ago the level of the oxygen was approximately half the level it is in the atmosphere today. It has been hypothesized that this led to the evolution of dinosaur respiratory systems specialized for oxygen uptake. The impact of that can be seen today in the highly efficient respiratory systems of: mammals who use tidal ventilation lizards who cannot breathe and run at the same time. birds who use airsacs to generate countercurrent exchange. amphibians who use cutaneous...
Please answer all
bout half way up, you down 350 million years ago. Shortly backbon ind upon closer isho tereafter, you notice something sticks laid the rock and upon closer inspection, it is clear you are 1. Lets say you are hiking up the side Pss a sign that tells you that the rock layer boundary you are looking at the fossil of the to ak bone of some kind of extinct animal. Given its age, this ba a) fish...
1. [12 points] Compelling evidence for the asteroid impact 65 million years ago which triggered the extinction of the dinosaurs was discovery of a thin Iridium-rich clay layer in sediments all around the world. A normal rock sample from the Earth's crust contains less than 1 nanogram per gram (or 1 part per billion) of Iridium, while the Iridium clay layer associated with the K-Pg impact contains about 3 parts per billion. (a) Assume the K-T impactor was a rocky...
014 (part 1 of 2) 10.0 points Ever since it was learned that an aster- oid hit the earth 65 million years ago and destroyed most life-forms, including the di- nosaurs, observations of new comets are fol- lowed with great interest! Suppose a new comet is found orbiting the sun as it is pass- ing its point of closest approach at a distance Tmin 0.658 AU (1 AU-semimajor axis (average radius) of the Earth's orbit.) Careful studies determine that its...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago