This lesson contains 11 slides, with interactive quizzes, text slides and 2 videos.
Items in this lesson
Shaping landscapes 4.6:
Wind erosion and human effects
Slide 1 - Slide
Slide 2 - Video
Step 1
Step 2
Step 3
Sediments sink downwards
When the river deposits more material than the sea can remove it, sediment plumes are formed
River slows down in lower course and can no longer carry the sediments
Slide 3 - Drag question
Describe in your own words how hurricanes are formed (use full sentences!)
Slide 4 - Open question
Goals
After studying this section, you will be able to:
- Explain how wind forms the landscape
- Explain how human actions contribute to wind erosion
Slide 5 - Slide
Wind erosion
No plant roots that hold the soil together.
Easy for the wind to blow the dry soil away.
Slide 6 - Slide
Why are plants so effective against wind erosion?
1. Plants slow the wind down at ground level, which makes it is more difficult for the wind to “grab” the sediment.
2. The roots of the plants hold soil together, wind cannot move it easily.
Slide 7 - Slide
Slide 8 - Slide
Slide 9 - Video
Talking point
Many of the countries dealing with desertification are LEDCs (Less deveolped countries). These countries might not have a lot of money to prevent soil erosion.