NATURE

3. An area of lower land between two lines of hills or mountains, usually with a river flowing through it
4. A piece of land completely surrounded by water
6. A thick tropical forest with many large plants growing very close together
7. A track that has been made deliberately or made by many people walking over the same ground
9. Land used for farming
10. The area where the land meets the sea
11. a structure built over a river, road, …
12. A part of the sea that is partly enclosed by a curve in the land
13. A place where water from a river or stream falls down over a cliff or rock

1. An area of land that is higher than the land around it, like a mountain but smaller
2. A natural and continuous flow of water in a long line across a country into the sea
3. A mountain with a large hole at the top, through which lava is sometimes forced out
5. A large area of land where it is always very dry, there are few plants, and there is a lot of sand or rocks
7. A large open area with grass and trees, especially in a town, where people can walk, play games, …
8. A field with wild grass and flowers
9. A large area of land that is covered with trees
10. A large area of rock or a mountain with a very steep side, often at the edge of the sea or a river
11. An area of sand or small stones at the edge of the sea or a lake