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 315 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
Great answer, keep it coming :)

bdobbins

  • Member
  • Posts: 326
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

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

Amphibian development in the wood frog (Rana sylvatica) Amphibian development in the wood frog (Rana sylvatica)
Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini di Bologna Orcinus citoniensis fossil, an extinct species of the same genus, Museo Capellini di Bologna
Trace Adkins - You're Gonna Miss This Trace Adkins - You're Gonna Miss This
Energy Resources: Fossil Fuels Energy Resources: Fossil Fuels
Fossil Prokaryotic Cells Fossil Prokaryotic Cells
Video: Types of synapses - electrical & chemical

For a complete list of videos, visit our video library