What mainly characterises the landscape of the Sahara desert?

it is rocky
it is sandy
it is grassy
it is mountainous
Most of the Sahara consists of rocky hamada; ergs (large areas covered with sand dunes) form only about 20% of the total area.
Kasia
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Very interesting!
reach: rather globalAfricaAlgeriadesertsdeserts of Africadeserts of North Africageographygeography of Africageography of North AfricanatureNorth AfricaSahara

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it is rocky
it is sandy
it is grassy
it is mountainous
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flagItaly
96%
0%
3%
0%
26
flagGreece
81%
4%
0%
13%
22
flagSwitzerland
75%
25%
0%
0%
16
flagAustralia
50%
45%
0%
4%
24
flagUnknown
45%
35%
0%
20%
20
flagthe Netherlands
42%
38%
9%
9%
21
flagAustria
41%
52%
5%
0%
17
flagthe United Kingdom
40%
47%
1%
9%
123
flagCanada
38%
44%
0%
16%
18
flagGermany
37%
50%
7%
4%
118
flagFrance
36%
45%
9%
9%
11
flagPoland
33%
57%
6%
2%
12653
flagthe United Arab Emirates
31%
37%
25%
6%
16
flagthe United States
29%
59%
2%
7%
374
flagIndia
17%
65%
6%
7%
64