This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is an example of a trace fossil? A) petrified wood B) fossil dung C) ... (Read 388 times)

lilldybug07

  • Hero Member
  • *****
  • Posts: 546
on: Jul 14, 2018
Which of the following is an example of a trace fossil?
 
  A) petrified wood
  B) fossil dung
  C) spider trapped in amber
  D) carbonization of a bee

Question 2

A sandstone is found to overlie a shale. The shale contains a volcanic ash layer that has been radiometrically dated to 84 million years ago. Both the shale and the sandstone are cut by a pluton of gabbro that has been dated to 60 million years old.
 
  How old is the sandstone layer?
  A) between 84 and 60 million years old
  B) older than 84 millions years old
  C) younger than 60 million years old
  D) more information is needed to constrain the age


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CourtneyCNorton

  • Sr. Member
  • ****
  • Posts: 317
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A


lilldybug07

  • Member
  • Posts: 546
Reply 2 on: Jul 14, 2018
YES! Correct, THANKS for helping me on my review

xthemafja

  • Member
  • Posts: 348
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Fossil and modern stromatolites: evidence of autotrophic cyanobacteria. Fossil and modern stromatolites: evidence of autotrophic cyanobacteria.
A fossil trilobite. A fossil trilobite.
Female Wood Duck at Crystal Springs Rhododendron Garden, Oregon, U.S. Female Wood Duck at Crystal Springs Rhododendron Garden, Oregon, U.S.
Wood Betony Wood Betony
A recently discovered fossil of a missing evolutionary link is shown on the right, and a ... A recently discovered fossil of a missing evolutionary link is shown on the right, and a ...
The World Geography of Fossil Fuels The World Geography of Fossil Fuels
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library