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

Author Question: After three half-lives, ________ of an original radioactive parent isotope remains. (Read 75 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
on: Feb 28, 2020

Question 1

________ dating based on radioactivity are very important for studying Precambrian geologic history because ________ in such strata.
◦ Relative; fossils are abundant
◦ Absolute; fossils are abundant
◦ Absolute; fossils are rare
◦ Relative; fossils are rare

Question 2

After three half-lives, ________ of an original radioactive parent isotope remains.
◦ 1/5
◦ 1/3
◦ 1/2
◦ 1/7
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by cherise1989 on Feb 28, 2020

AISCAMPING

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


cherise1989

  • Member
  • Posts: 555
Reply 2 on: Feb 28, 2020
YES! Correct, THANKS for helping me on my review

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania) Fossil remains of anatomically modern humans from the Czech Republic and from China (center crania)
A fire safety plan like RACE saves lives. A fire safety plan like RACE saves lives.
Noon-Day Rest in Marble Canyon, after an original sketch by Thomas Moran, from J. W. Powell, ... Noon-Day Rest in Marble Canyon, after an original sketch by Thomas Moran, from J. W. Powell, ...
A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ... A mere one-half percent of Americans owns over a quarter of the entire nation’s wealth. Very few ...
The isotope record The isotope record
What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g? What is the isotopic atomic mass of an isotope if 9.7023 1022 atoms weighs 4.0256 g?
Video: The Vestibular System

For a complete list of videos, visit our video library