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 15 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
Excellent

bulacsom

  • Member
  • Posts: 329
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Effects of Differences in Solute Concentration on the Movement of Water Molecules Effects of Differences in Solute Concentration on the Movement of Water Molecules
Physical features of Sjögren's syndrome. Source: Ways Sjogren's Syndrome May Affect the ... Physical features of Sjögren's syndrome. Source: Ways Sjogren's Syndrome May Affect the ...
Circling the forearm to create movement at the elbow. Circling the forearm to create movement at the elbow.
Regional differences affect soil fertility Regional differences affect soil fertility
Factors That Affect Your Basal Metabolic Rate Factors That Affect Your Basal Metabolic Rate
Diaphragmatic movement, percussion Diaphragmatic movement, percussion
Video: Endocytosis -Types and Phagocytosis

For a complete list of videos, visit our video library