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| kelp forest (Kelp forests are underwater areas with a high density of kelp. They are recognized as one of the most productive and dynamic ecosystems on Earth.[1] Smaller areas of anchored kelp are called kelp beds. WAD Alexander Demidov) | |||
| заросли водорослей: 4 phrases in 2 subjects |
| Navigation | 2 |
| Scuba diving | 2 |