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What percentage of the Sahara Desert is made up of sand?

9%

15%

21%

43%

Regions of sand dunes (erg) occupy only about 15% of the Sahara; "stone deserts," consisting of plateaus of denuded rock (hammada) or areas of coarse gravel (reg), cover about 70% of the region; mountains, oases, and transition zones account for the remainder.

Ts

3

Carlos Castillo www.encyclopedia.com

geography

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Answers by country

Austria

0%

60%

40%

0%

10

Greece

5%

58%

17%

17%

17

Germany

12%

56%

16%

16%

25

India

16%

41%

33%

8%

12

the United States

17%

37%

30%

15%

40

Poland

18%

31%

24%

25%

1270

the United Kingdom

13%

31%

22%

31%

22

What was the reason to build Canberra for Australian capital, rather than selecting one of the existing large cities?

safe location far from the sea

wish of the Indigenous Australians

dispute between Sydney and Melbourne

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Solomon Islands

Where in the world does slavery still occur at the largest scale?

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