Author Question: How many separate episodes of glaciation have occurred during Earth's history? What will be an ... (Read 49 times)

awywial

  • Hero Member
  • *****
  • Posts: 577
How many separate episodes of glaciation have occurred during Earth's history?
 
  What will be an ideal response?

Question 2

What is unique about development efforts in a post-conflict situation?
 
  What will be an ideal response?



kjo;oj

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

There have been at least six episodes of extensive glaciation: the mid-Archean at 2.9 b.y. ago, the Huronian at 2.3 b.y. ago, the Snowball Earth episodes of the Neoproterozoic at 750 m.y. ago and at 600 m.y. ago, the Late Ordovician glaciation about 440 m.y. ago, the Permo-Carboniferous glaciations about 280 m.y. ago, and the Pleistocene glaciation, which has lasted for the past 15-30 m.y.

Answer to Question 2

The trauma and memories of conflict makes it more difficult for individuals and communities to work together, and an outsider will have to negotiate those issues as well as the regular hurdles in finding solutions to help people improve their lives.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

For a complete list of videos, visit our video library