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 38 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
Thanks for the timely response, appreciate it

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Inhibition and facilitation of spruce during the major successional stages at Glacier Bay, Alaska (d Inhibition and facilitation of spruce during the major successional stages at Glacier Bay, Alaska (d
Contrast of ventilation and external and internal respiration. Contrast of ventilation and external and internal respiration.
Jostle the thigh, tossing from side to side, hand to hand. Causes loose, free movement in the hip ... Jostle the thigh, tossing from side to side, hand to hand. Causes loose, free movement in the hip ...
Diaphragmatic movement, percussion Diaphragmatic movement, percussion
Glacier Movement Glacier Movement
Development of the Eyes and Ears: External View - 28 days Embryo Development of the Eyes and Ears: External View - 28 days Embryo
Video: Electrical changes in the heart

For a complete list of videos, visit our video library