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

Author Question: What is frictional drag and how does it affect the external movement of a glacier? What will be ... (Read 10 times)

Anajune7

  • Hero Member
  • *****
  • Posts: 574
on: Jul 29, 2018
What is frictional drag and how does it affect the external movement of a glacier?
 
  What will be an ideal response?

Question 2

Why are glacial striations so important?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Frictional drag is simply the slow down of movement due to the contact between two opposing surfaces. Frictional drag slows down a glacier's external movement. The glacier experiences this drag as it encounters the bedrock. So, movement is slowest at the base and at the sides of the glacier.

Answer to Question 2

Answer: Striations are parallel scratches created by glaciers scraping the underlying bedrock. Aligned in the direction of ice flow, striations tell us the past movement of a glacier that has long since receded. By mapping striations on land once covered by continental glaciers, geologist can decipher the flow direction of the ice.


Anajune7

  • Member
  • Posts: 574
Reply 2 on: Jul 29, 2018
:D TYSM

Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Types of movement across a biological membrane. Types of movement across a biological membrane.
scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by
Movement of fluids and solution tonicity Movement of fluids and solution tonicity
Use an Automated External Defibrillator Use an Automated External Defibrillator
Internal and External Loci of Control Internal and External Loci of Control
Scissoring motion to create movement between the metacarpals of the hand. Scissoring motion to create movement between the metacarpals of the hand.
Video: Helper T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library