This topic contains a solution. Click here to go to the answer

Author Question: One important reason we do not know much about the geologic history of the Precambrian is that ________. (Read 80 times)

imowrer

  • Hero Member
  • *****
  • Posts: 514
One important reason we do not know much about the geologic history of the Precambrian is that ________.
◦ radioactivity was not measurable during the Precambrian
◦ the climate was so harsh that erosion removed most of the rocks that formed during the Precambrian
◦ we have not yet been able to establish the half-lives for radioactive elements that existed in the Precambrian
◦ there are very few fossils preserved in Precambrian rocks
◦ rocks did not exist during much of that time


Related Topics

Need homework help now?

Ask unlimited questions for free

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

cpetit11

  • Sr. Member
  • ****
  • Posts: 321
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 59% of students answer this correctly




imowrer

  • Member
  • Posts: 514
Reply 2 on: Feb 28, 2020
Great answer, keep it coming :)


TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

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?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

For a complete list of videos, visit our video library