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| river A stream of water which flows in a channel from high ground to low ground and ultimately to a lake or the sea, except in a desert area where it may dwindle away to nothing. A river and all its tributaries within a single basin is termed a drainage system | |||
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abhainn : 4 do fraz, 4 tematyki |
| Nauki o życiu | 1 |
| Ochrona środowiska | 1 |
| Transport | 1 |
| Zasoby naturalne i ochrona dzikiej przyrody | 1 |