I. complete the crossword
Across
1. a long line of very big hills
4. a long turning flow of water
5. an area with a lot of trees, plants and animals
8. an area with a lot of sand, but not many plants and almost no water
9. a piece of land with water all around it
Down
2. an area between two hills
3. similar to 5 across, but here it rains a lot
6. an area next to the sea with sand, where some people go to spend their holidays
7. a big, cold area that covers the land and sea around the North and South Pole
Loga
Sinh Học lớp 12
