Question

Which of the following is an object used in relative dating?

Carbon-14

Daughter isotope

Index fossil

Parent isotope

Answer 1

A

Answer 2

hey your back!

Answer 3

by which i mean
"hey you're back"

Answer 4

@BassCatcher15 is right

Answer 5

Carbon is a naturally formed medium used in nearly all forms of dating. I will research it to double check.

Answer 6

@BassCatcher14, please make sure you are guiding the user through the process and not giving any answers. Refer to the Code of Conduct for further clarifications on how to properly respond to questions on Open Study. http://openstudy.com/code-of-conduct

Answer 7

lol guide how? google?
getting so strict around here jeez

Answer 8

hmm, look who's talkin. ^

Answer 9

Whether I explain my answer before or after I tell her the letter choice, does it really matter @Miracrown ? Its biology, not Math. Its not like there is a specific process.

Answer 10

@BassCatcher15 now if you don't mind, answer the above question for her as well. :)

Answer 11

I wanna say A, but D is also a possible choice. Let me check.

Answer 12

http://openstudy.com/study#/updates/4f1f2456e4b076dbc3481867

Answer 13

Okay so it is A.

Answer 14

Scratch that

Answer 15

B im sorry. I got mixed up with my letters. Lol

Answer 16

No. The answer to your last question is B, radiometric Dating.

Answer 17

The first one is A, second one is B.

Answer 18

I don't quite understand the question

Answer 19

Obviously the Cenozoic Era is the youngest.

Answer 20

Oh okay. Hang on

Answer 21

I wanna say Pecten Gibbus

Answer 22

Do you see why? The Cenozoic Era is the youngest, therefor it has to be one of the two top ones and the one on the right has more structure, therefor making the Pecten gibbus the youngest

Answer 23

A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after one half-life? 100 75 50 25
This one is 25

Answer 24

Question 2 (Multiple Choice Worth 2 points) Which of the following is an object used in relative dating? Carbon-14 Daughter isotope Index fossil Parent isotope

Carbon-14

Answer 25

Question 3 (Multiple Choice Worth 2 points) Which of the following is a method used to obtain the relative age of a rock or fossil? Decay rates Radiometric dating Superposition Uniformitarianism

Radiometric Dating

Answer 26

Oh okay no problem. Lol

Answer 27

Examine the following diagram. Place the labeled layers in order from oldest to youngest. A, B, D, C
D, C, B, A
D, A, B, C
C, B, A, D

This happens to be the first one. Think about it like pancakes. When you are cooking pancakes and putting them on a plate, the oldest one is always on the bottom with the newest one on top. Get it?

Answer 28

Which geologic principle is the reason rock layers typically form parallel to each other? Cross-cutting relationships Original horizontality Superposition Unconformities

Original Horizontality

Answer 29

Examine the Florida map shown below. Using the principal of superposition, which of the following statements is correct?

Layers A and B are the same age.
Layers C and D are the same age.
Layers A and B are older than layers C and D.
Layers C and D are older than layers A and B.

I would lean towards the final answer choice for this one.

Answer 30

Paleontologists use this to help them figure out the age of a fossil by examining what layer of earth the fossil was discovered in. Just as I said about the pancakes, there are layers, the bottom being the oldest and so on. In this case, paleontologists can use past samples of ground to compare the location that the fossil is found in

Answer 31

Hang on onnnne sec. :)

Answer 32

A relative age might be how deep each fossil is, so the deeper fossils will be older relative to the ones closer to the surface (though you need to pay attention to signs of metamorphosis). Absolute age could be found with procedures like carbon dating.

Answer 33

Hey you there? Lol

Answer 34

Okay are you done with the exam or is there more?

Answer 35

Noproblem! Havea great night!