« previous next »

Author Question: Explain the difference between geologic eras, periods, and epochs. Give an example of each. What ... (Read 107 times)

go.lag

  • Hero Member
  • *****
  • Posts: 667
on: Jul 13, 2018
Explain the difference between geologic eras, periods, and epochs. Give an example of each.
 
  What will be an ideal response?

Question 2

Thinking about geologic time, why is it necessary to accept the reality of an Earth that is very old?
 
  What will be an ideal response?
McKnight's Physical Geography: A Landscape Appreciation ¦ Hess, Tasa ¦ 12th Edition
Buy Test-Bank


gstein359

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: Epochs are subsets of periods which are subsets of eras. For instance, the Pleistocene Epoch is part of the Quaternary Period, which is a subset of the Cenozoic Era.

Answer to Question 2

Answer: The geomorphic processes are mainly slow. So only through their actions over millions upon millions of years can we have the landscapes we see today.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Flower part number is a characteristic difference between monocots and eudicots Flower part number is a characteristic difference between monocots and eudicots
The difference between mieosis and mitoses The difference between mieosis and mitoses
Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a Landbridge connections between continental Asia and Indonesia during glacial periods extend as far a
A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ... A typical open-end wrench. Note the size difference on each end and that the head is angled 15 ...
Using the measuring device to give the correct dose to children Using the measuring device to give the correct dose to children
E9-23 Prepare income statements Explain the difference in operating income E9-23 Prepare income statements Explain the difference in operating income
Video: Structures that affect circulation - kidneys, blood volume and venous tone

For a complete list of videos, visit our video library