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WEATHERING AND DENUDATION — Geography STD 9 — Question

ICSE BoardEnglish MediumSTD 9GeographyWEATHERING AND DENUDATION2 Marks
Question
Critical thinking question:
Observe the image given below and answer the questions that follow.
Image
Your cousin brother has sent these images to you after visiting Sahara Desert with his family. He was surprised to see the various types of sand dunes found in the desert. From your geographical point of view identify the images sent by your cousin. Also explain why they have different shape?
✓

Answer

Image 1 is Barkhans
Image 2 is Seif dunes
Barkhan dunes are formed transversely with the direction of winds.
Seif dunes are formed longitudinally with the direction of winds.

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