science

Which can be excluded due to the absence of fossil records?
A. the shell of crab
B.the body of a jellyfish
C.the shell of a snail
D. a dinosaur's backbone

Which best supports the evidence that an asteroid collision may have caused, caused the extinction of dinosaurs?

A. Rare metal on Earth called Iridium is found in layers where dinosaurs disappeared.
B. Many dinosaur skeletons are found in one particular rock layer.
C. Dinosaur fossil remains are found at the bottom of a body of water.
D. Bodies of dinosaurs are only found in craters where asteroid collided.

Bodies of dinosaurs are only found in craters where asteroid collided.

A. Fossils found in rock layers closest to Earth’s surface are the oldest.
B. Fossils found in among numerous other fossils are most recent in age.
C. Fossils found in rock layers that have been disturbed are the oldest.
D. Fossils found in lower rock layers are older than fossils found in upper layers

Why are time periods in the geologic time scale are not even in length?

A. They are based on a different type of calendar used to track Earth’s history.
B. They are based on important events happened in Earth’s history.
C. They are based on the type of fossils found in rock layers of the Earth.
D. They are based on the thickness of the Earth's rock layers.

Please help :< im need the answer ASAP!

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  1. someone please answer.. :<

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  2. oh and im 6th grade

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  3. 1 a simple cell living organism
    2 Iridium is found in the same rock layer when dinosaurs became extinct.
    3Fossils found in lower rock layers are older than fossils found in upper layers.

    4 Time periods are based on when important events happened in Earth’s history.

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  4. hope it helps

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  5. OMG TYSM i got a 100!! Im so happy thanks for your help!! i really appreciate it <3!~

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  6. any time do you have khan academy?

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  7. Uhmm.. no? never heard of it. But i hope you know what your looking for! and thanks so much again! :)

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  8. 1.A
    2.A
    3.B
    4.A

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  9. B
    C
    A
    C

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  10. answer for connexus

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  11. The real answers are
    1. D
    2. C
    3. A
    4. D
    I got a 100%

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  12. Ya'll are wrong :(

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  13. I will give you the right answers soon

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  14. please do

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  15. 1. The body of a jellyfish
    2. Rare metal on earth called iridium is found in layers where the dinosaurs disappeared
    3. Fossils found in lower rock layers are older than ones found in upper layers
    4. They are based on important events happened in Earth’s history.
    Stop putting letters as they are different for everybody

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  16. THANK YOU SO MUCH SNAKE LOVER YOU A LIFE SAVER

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  17. Just read my name

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  18. snake lover is correcto

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  19. To anyone who says "you can use google, it gives answers stop relying on people to give you them" Well, this is google (or like a google website) and google was made by people. All the answers on google are from people. Also @Snake lover is right.

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  20. Thank you snake lover

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  21. Snake lover you're the bomb

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  22. TYSM snake lover

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  23. thanks soo much 100%

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  24. Connexus-Do not us any outside help.
    Us-New tab-Jiskha-Geologic time scale-scroll-ah paradise

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  25. thanks snake!

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  26. TYSM you so much snake lover!!!

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  27. THX U A LEDGEN

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  28. I have 5 questions. the last one is: Which can be excluded from a list of evidence that supports the claim that an asteroid colliding with Earth caused a mass extinction pl ease help

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  29. Snake lover is on drugs less go

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  30. I’m joking thx bro

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  31. thx so much snake lover i got al of them right ,<3

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  32. sNAKE LOVER WAS RIGHT! I got 100% PROMISE For connexus!

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  33. which one is the last one?
    cuz i have 5 questions

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  34. The answer to #5 is: "Single-celled and multicellular organisms are found in layers of rocks on Earth."
    You're welcome <3

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