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

Author Question: Are sand dunes stationary or do they move and migrate? What will be an ideal ... (Read 35 times)

chads108

  • Hero Member
  • *****
  • Posts: 507
on: Jul 29, 2018
Are sand dunes stationary or do they move and migrate?
 
  What will be an ideal response?

Question 2

Sand dunes form
 
  A) where air flows freely over sand.
  B) from wind that is increasing in speed.
  C) as wind moves sand from the back to the front of the dune.
  D) as wind stops blowing.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Galvarado142

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Sand dunes migrate. The whole mound of sand moves downwind as sand grains on the windward slope move up and over the crest of the dune to fall on the leeward slope. Sand removed from the back of the dune is redeposited on the front of the dune. Over time, this continuous process moves the entire dune.

Answer to Question 2

Answer: C


chads108

  • Member
  • Posts: 507
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

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 Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Ground cover and colour such as shown here in (a) white sand Ground cover and colour such as shown here in (a) white sand
Sand tiger next to a German U-boat in the Pine Knoll Shores Aquarium Sand tiger next to a German U-boat in the Pine Knoll Shores Aquarium
Typical timing marks. The numbers of the degrees are on the stationary plate and the notch is on ... Typical timing marks. The numbers of the degrees are on the stationary plate and the notch is on ...
Circular friction around the ankle with the fingertips. Applying pressure with the fingertips, move ... Circular friction around the ankle with the fingertips. Applying pressure with the fingertips, move ...
Pull-ups from shoulder to buttocks. (A) Move across the shoulder, fingertips between the ribs. (B) ... Pull-ups from shoulder to buttocks. (A) Move across the shoulder, fingertips between the ribs. (B) ...
If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas? If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas?
Video: What are Taste Receptors? How Does it Work? Animation

For a complete list of videos, visit our video library