GeotchaA geography quiz on a real globe
25 longest rivers of the Black Sea basin
25 rivers, each one drawn on a satellite globe. Name it when it lights up, find it when you are given its name, or type every one you can remember in Name all.
Free to play, with no account needed. What you miss comes back for review until it sticks.
The rivers
- 1Danube2,850 km
- 2Dnieper2,285 km
- 3Don1,870 km
- 4Kızılırmak1,355 km
- 5Dniester1,352 km
- 6Desna1,130 km
- 7Donets1,053 km
- 8Khopyor979 km
- 9Tisza966 km
- 10Prut953 km
- 11Sava945 km
- 12Kuban870 km
- 13Sakarya824 km
- 14Southern Bug806 km
- 15Mureș803 km
- 16Sal776 km
- 17Pripyat775 km
- 18Medveditsa745 km
- 19Siret740 km
- 20Drava720 km
- 21Psel717 km
- 22Seym696 km
- 23Horyn659 km
- 24Sozh648 km
- 25Olt615 km
Length in km as Wikidata records it (P2043, the best-ranked figure). Each named river counts on its own: the river that carries the name, from its source to its mouth. Headstreams and tributaries with names of their own are rivers of their own, so the Missouri and the Mississippi are two rivers here, as are the Irtysh and the Ob (the Longest River Systems set measures such chains as one system, from the most distant source). A named section of a river is that river: the Solimões, as the Amazon’s upper course is called in Brazil, is the Amazon. Where the recorded length runs from a differently named headwater (the Congo’s from the Lualaba’s source), the course is drawn on up that headwater. Rivers under 200 km are in only when they are well known (30 or more Wikipedia editions), and a river whose mapped course covers under half its recorded length is left out. Rivers in Antarctica are left out unless the quiz includes Antarctica. The Black Sea basin: every river here whose waters reach the Black Sea or a sea, gulf or bay inside it, as the IHO's sea areas nest (the North Sea lies in the Atlantic, the Adriatic in the Mediterranean), directly or through other rivers and lakes, following where Wikidata says each river flows (P403) downstream. Rivers of inland basins (the Caspian Sea, Lake Balkhash) reach no ocean.
On the map
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