1. Under which of the following conditions would a fossil most likely form? (1point)

a. A living thing dies and sediment is very slowly deposited on top of i’s body.
b. A living thing dies and sediment quickly covers its body. <-
c. A living thing dies and its skeleton is left to the elements.
d. A living thing dies and a radioactive element breaks down its body.
2. If you were looking for an example of a trace fossil, for which of the following might you search? (1point)
a. Footprints and trails <-
b. A whole body preserved in rock
c. Dinosaur teeth
d. A hardened mineral sample
3. What does the law of superposition tell about the relative ages of rocks? (1point)
a. That the deeper you go into rock layers, the older the rocks are <-
b. That the deeper you go into rock layer, the younger the rocks are
c. That the oldest rock layer is always on top
d. That the oldest rock layer is always undisturbed
4. After a rock layer is eroded, which additional event must occur to create an unconformity, or gap, in the geologic record? (1 point)
a. An earthquake or motion along a fault
b. New sediment deposits build up on the eroded area <-
c. Radioactive decay along a fault
d. A volcanic eruption near the eroded area
5. Radioactive decay occurs when atoms (1 point)
a. Lose mass
b. Join with atoms of another element
c. Break down to form atoms of another element <-
d. Are exposed to chemical weathering
6. If you were to consult the geological time scale for when the first vertebrates evolved, where would you look? (1 point)
a. In the section for the Ordovician period of the Paleozoic era <-
b. In the section for the Quaternary period of the Cenozoic era
c. In the section for the Triassic period of the Mesozoic era
d. In the section for Precambrian time
7. Earth’s atmosphere, oceans, and continents began to form during the first several hundred years of (1 point)
a. Precambrian time
b. The Paleozoic
c. The Mesozoic era <-
d. The Cenozoic era
8. During the Devonian period, animals that could live on land began to evolve. These animals still spent part of their lives in the water. What were these animals called?
a. Trilobites
b. Reptiles <-
c. Amphibians
d. Dinosaurs
9. Which of the following events occurred during the Mesozoic era? (1 point)
a. Dinosaurs became common on land <-
b. Whales and dolphins evolved in the oceans
c. Reptiles evolved on land
d. The supercontinent Pangea formed
10. Which of the following vertebrates had the chance to become abundant after the dinosaurs became extinct? (1 point)
a. Wooly mammoths
b. amphibians
c. mammals
d. reptiles <-
11. Which of the following organisms is not extinct? (1 point)
a. The dodo bird
b. The saber-toothed tiger
c. The saltwater crocodile <-
d. The Carolina parakeet
12. During which section of the geologic time scale did the first modern humans evolve? (1 point)
a. During the Paleogene period of the Cenozoic era
b. During the Quaternary period of the Cenozoic era <-
c. During the Cretaceous period of the Mesozoic era
d. During the Precambrian time
13. If the geologist found two fossils of different species buried next to each other in a rock layer, he or she might hypothesize that the two organisms may have been alive during the same period.
a. True <-
b. False
14. A species might become extinct when a disastrous event, such as a meteorite impact, occurs. (1 point)
a. True <-
b. False

User Icon for Ms. Sue Ms. Sue answered
6 years ago

The first five are all correct.

I'll be back later to check others.

User Icon for Ms. Sue Ms. Sue answered
6 years ago

7 is wrong

10. I'm not sure.

The others are correct.

User Icon for 100% answer 100% answer answered
6 years ago

1.b

2.a
3.a
4.b
5.c
6.a
7.a
8.c
9.a
10.c
11.c
12.b
13.true
14.true
100% correct for CA

User Icon for Anonymous Anonymous answered
6 years ago

He's right

User Icon for anon is right anon is right answered
6 years ago

deadass hes right rawr xd

User Icon for Lopo Lopo answered
6 years ago

He right

User Icon for Thank Me L8TER Thank Me L8TER answered
6 years ago

your 1000000090% percent right DAWG

User Icon for kk kk answered
5 years ago

How do we know there a he....There right.

User Icon for Jeremy Jeremy answered
5 years ago

Their right

not there

User Icon for Trainman Trainman answered
5 years ago

The half-life of strontium-90 is 28.8 years. This means that if you have 60 strontium-90 atoms, in 28.8 years you will be left with 30 strontium-9

User Icon for Trainman Trainman answered
5 years ago

Geologic Time Scale is the most relative time scale which records the time intervals on

Earth corresponding to each other in succession. It is used by geologists to
tell Earth’s history because it conforms to the order of Earth’s development
with respect to dividing time in terms of Earth’s biotic composition representing
various life forms.

User Icon for Doug Dimmadone Doug Dimmadone answered
5 years ago

You idiots it's "They're right".

User Icon for Rainy Rainy answered
5 years ago

The people on this website are incompetent, it's obvious, but you don't have to grammar police them.

User Icon for frog frog answered
5 years ago

I mean kk decided to correct him first, but I agree. Don't try and correct someone if you're wrong yourself.

User Icon for Dad Dad answered
5 years ago

Are those the right answers

Thanks for the answers peeps~A.T.

User Icon for Destiny Destiny answered
5 years ago

Is this right? :D

User Icon for hello hello answered
5 years ago

yes he is right

User Icon for please halp me i need it please halp me i need it answered
5 years ago

what bout the short answers?? ik im stupid but i need help, plz help me

User Icon for Yes. Yes. answered
4 years ago

Sameeee

User Icon for Hello Hello answered
4 years ago

Thank you so much! Got 100% on the test!

User Icon for slayer slayer answered
4 years ago

me to thanks

User Icon for Taylor Taylor answered
4 years ago

how about 15,16,and 17 need those answers

User Icon for sour cake sour cake answered
4 years ago

i need the short answers

User Icon for loo loo loo loo answered
4 years ago

Can you give me # 17 anyone, but the right # 17 PLEASE

User Icon for they r right they r right answered
4 years ago

I need help for 15,16 and 17

User Icon for Anonymous Anonymous answered
4 years ago

What’s the last questions

User Icon for stuff is way stuff is way answered
4 years ago

!REMEMBER TO REWORD EACH ANSWER! |

-------------------------------------------------------------
Q16 Answer:
The half-life of strontium-90 is 28.8 years. This means that if you have 60 strontium-90 atoms, in 28.8 years you will be left with 30 stronium-90 atoms left.
----------------------------------------------------------------------------------------------------
Q17 Answer:
Because of how long the Earth has been alive, geologists use the geologic time scale to organize how far down the fossils or artifacts are. The geologic time scale shows the rocks and crust and how everything looked in the past times.
----------------------------------------------------------------------------------------------------
idk Q15

User Icon for Keaton Keaton answered
4 years ago

15 PLZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

User Icon for Alexis white Alexis white answered
4 years ago

B and D must compare in age because D must be older than B is because I know this I can infer that D must be at least as old as B is. The boundary between B and D is called an uncomformity

User Icon for Alexis white Alexis white answered
4 years ago

Sorry wrong spelling unconformity

User Icon for Blue was the imposter. Blue was the imposter. answered
4 years ago

OMG ty ty ty ty I would've failed

User Icon for Sav Petrie Sav Petrie answered
4 years ago

100% Answers is correct

User Icon for Mrs. Jean Mrs. Jean answered
4 years ago

So I agree with you. It looks like 7 is wrong and ten is wrong. Work on those again ill be happy to check your answer. @100% answer, you shouldn't have gave him/her the answer. Kids need to learn how to do things by given help not the flat out answer. Please next time, dont do it. @Blue was the imposter, thank you for telling us but next time, try to figure it out, its like a videogame, you cant get the full answer, you just get hints. I know I know you alla re gonna say "but you're on this page, and, stop it your fake #faketeacher" but know, I'm on this page to help you all, and I'm not fake.

User Icon for Gogy Gogy answered
4 years ago

go daddy

User Icon for aloha aloha answered
3 years ago

REWORD IT

15-
Layer D is older than layer B. If rock layers between B and D have eroded away, the boundary between B and D are called, an unconformity

User Icon for I have 15 btw I have 15 btw answered
3 years ago

QUESTION 15:

I believe that Layer D is older than layer B, even though it is shorter. Since the rock layers between B and D have deteriorated away, the dividing line between B and D would be called an unconformity. (I copy pasted so i changed it a bit, but change it yourself aswell just incase!!!)
Your welcome if you get this right! and sorry if u didnt

User Icon for Anonymous Anonymous answered
3 years ago

Thanks I passed!!!

User Icon for Anonymous Anonymous answered
3 years ago

wait is this for usa testprep cause i got 20 question

User Icon for ozempic ozempic answered
3 years ago

you got the wrong test brother

User Icon for ✨W33B✨ ✨W33B✨ answered
3 years ago

Thanks

User Icon for miss gurl miss gurl answered
3 years ago

um thx ig i still dont kow what 15 16 and 17 is but ig :|

User Icon for MR.2021 MR.2021 answered
3 years ago

HAPPY NEW YEAR

all of you are connexus BTW! I use this to Check my answer's not to Cheat them.

Most of you are in my class this year, I know ya'll and i ain't afraid to tell, please use this responsibly.
Vanessa!

User Icon for unknown unknown answered
3 years ago

ur ganna tell on a person who was in 6th grade... 3 or 2 years ago... and ur bearly in 6th in rn..

User Icon for Never enough time Never enough time answered
3 years ago

Your cheating by being on this site during a test Vanessa. Just be real with yourself .. oh yeah and please tell on me , who am I?

User Icon for Anonymous Anonymous answered
3 years ago

lmao yall are snitches af x_X