science.. help?

Question

Could someone please help me please..


Scientists have used a combination of relative dating and absolute dating techniques to create the__________, the "map" of past eras of earth's history.


There are three forms of carbon atoms, Carbon-12, Carbon-13, and carbon-14. The only difference between these three forms of carbon is that they have different numbers of neutrons. Carbon-12 has 6,
Carbon-13 has 7, and Carbon-14 has 8. We call the same kind of atoms that have varying numbers of neutrons __________. ??

Answer 1

1) Chronology

2) Is your terminology correct in this question?

Answer 2

Wow that's difficult. The second would be isotopes if "neutron" was replaced with "electron". I thought isotopes had different numbers of electrons?

I have no idea about the frst one

Answer 3

"Scientists" attack Christianity and "Christians" attack technology. How can technology be used to objective non-repeatable phenomena. Did "guy" exist 7,000 years in the past? It relies upon on the form you define "guy." in case you define "guy" as somebody who can checklist history, the respond must be "no." whilst i became attending college, many years in the past, C-14 relationship became noted as an "absolute" relationship approach and limited to 50,000 years in the past. Now it is seen a relative relationship equipment. It has alway been seen as such via physicists and extends previous 60,000 years. C14 is created via bombarding the nitrogen loose on the proper of the ambience with cosmic capability. If there is way less loose nitrogen, there is way less C14 created. much less C14 in an merchandise shows an older age. technology does no longer attack something. the 2nd it does, it ceases to be technology. Scientists who take aspects like which will become clergymen of "technology" extremely than observers of experiments and technology is all approximately repeatable technology. right it is the weak point of all relationship structures. no person has ever examined them for 2 hundred,000 years... or maybe 60,000 years. the concept that the forces that govern those structures are static is with out data. Even the belief of time has its limits. with out mass/gravity, time does no longer exist, in accordance ot Steven Hawkings. yet, then, the Biblical relationship is likewise in line with assumptions via some nineteenth century bishop. How long is an afternoon if the earth does no longer rotate in terms of the sunlight... or if there is not any sunlight. Then there is the subject of randomness. If a pail of ice unexpectedly began to boil, might or no longer it rather is a miracle or an twist of way forward for probability? technology might say it became an twist of way forward for probability possibly basically to ensue as quickly as in one thousand billion trillion buckets of ice. in some unspecified time interior the destiny, that that's probability and that that's supernatural attain a nexus.

Answer 4

1. ? i hav no idea
2. isotopes