---
title: Islands, seas and lakes — a lesson of Mova's school · trees and pragmatics
description: «Islands, seas and lakes», a lesson of the geography course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: An island is land with water all round; the biggest is Greenland, because Australia is counted as a continent instead.
---

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# Islands, seas and lakes

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Lesson 6 of the geography course of Mova's primary school: 17 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/geography/6-islands-seas-and-lakes/).

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- [0](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/0/) — An island is land with water all round; the biggest is Greenland, because Australia is counted as a continent instead.
- [1](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/1/) — A sea is a smaller part of the ocean, often half-closed by land, like the Mediterranean of Venice and Genoa or the Baltic of the Hanseatic towns you trade in EU5.
- [2](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/2/) — How salty a sea is depends on a simple balance: lots of rivers make it fresher, like the Baltic, and strong sun and few rivers make it saltier, like the Mediterranean.
- [3](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/3/) — A lake is water closed in by land, and the Caspian is so huge and salty that people call it a sea, while Baikal is so deep it holds more water than all five Great Lakes.
- [4](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/4/) — Water can also vanish: the Aral Sea shrank to about a tenth because its rivers were taken for farms, and boats now lie in the desert.
- [5](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/5/) — Greenland is the world's largest island, with about 2.2 million square kilometres, and Australia is not counted because it is called a continent.
- [7](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/7/) — Great Britain is the largest island in Europe and the ninth largest in the world.
- [8](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/8/) — Indonesia is the world's largest country made only of islands, with more than 17,000 islands; many are tiny rocks that the tide covers and uncovers, so the exact count is hard.
- [9](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/9/) — A sea is a smaller part of the ocean, often partly enclosed by land, such as the Mediterranean, the Baltic or the North Sea.
- [10](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/10/) — The Caspian Sea is the world's largest lake by area, at about 370,000 square kilometres, and its water is salty, though only about a third as salty as the ocean; rivers such as the Volga flow in, but none flows out, so water leaves only by evaporating and the salt stays behind.
- [11](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/11/) — Lake Baikal in Siberia is the deepest lake on Earth at about 1,640 metres, the oldest at about 25 million years, and holds about a fifth of the world's unfrozen fresh surface water.
- [12](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/12/) — Lake Superior, between Canada and the United States, is the largest freshwater lake by area, at about 82,000 square kilometres.
- [13](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/13/) — The Mediterranean is an almost closed sea, and more water evaporates from it than rivers and rain bring in, so ocean water keeps flowing in from the Atlantic.
- [14](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/14/) — The Baltic Sea is brackish, much less salty than the ocean, because many rivers pour fresh water into it and its only exit is through narrow Danish straits.
- [15](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/15/) — The shore of the Dead Sea, between Israel, the West Bank and Jordan, is about 430 metres below sea level, the lowest land on Earth, and its water is almost ten times saltier than the ocean, so heavy (dense) that people float on it easily.
- [16](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/16/) — The Aral Sea in Central Asia, once the fourth largest lake in the world, has shrunk to about a tenth of its former size since the 1960s.
- [17](https://md.mova.elamur.ai/free/en/corpora/school/geography/6-islands-seas-and-lakes/17/) — Greenland today belongs to the Kingdom of Denmark, but in 1337, when EU5 starts, its Norse settlers and Iceland were under Norway, which joined Denmark in the Kalmar Union only in 1397.

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