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

Author Question: How are sand dunes formed? What will be an ideal response? ... (Read 67 times)

Brittanyd9008

  • Hero Member
  • *****
  • Posts: 500
on: Jul 29, 2018
How are sand dunes formed?
 
  What will be an ideal response?

Question 2

Blowing sand in a sand dune, settles
 
  A) on the windward slope of the dune.
  B) on the leeward slope of the dune.
  C) on surrounding mounds of vegetation.
  D) in the wind shadow of the leeward slope.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ricroger

  • Sr. Member
  • ****
  • Posts: 352
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: Sand dunes form when airflow is blocked by an obstacle such as a rock or clump of grass. As the wind sweeps over this obstacle, wind speed decreases and sand grains fall out of the air and are deposited in the wind shadow. As more sand falls, a mound forms which further blocks the flow of air. With more sand and more wind a dune forms.

Answer to Question 2

Answer: D


Brittanyd9008

  • Member
  • Posts: 500
Reply 2 on: Jul 29, 2018
Gracias!

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

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?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

The image formed on the retina is inverted. The brain rights the image as part of the interpretation The image formed on the retina is inverted. The brain rights the image as part of the interpretation
Allergic response by allergens. Allergic response by allergens.
Dynamic Response of Thermometers Experiment Dynamic Response of Thermometers Experiment
Cell-mediated immunity, primary and secondary response. Cell-mediated immunity, primary and secondary response.
The Emergency Action Guide entry for styrene. Useful information includes emergency response ... The Emergency Action Guide entry for styrene. Useful information includes emergency response ...
Example of inflammation as a response to bacterial infection. Example of inflammation as a response to bacterial infection.
Video: Supine Position

For a complete list of videos, visit our video library