Hydrosphere

3. They are open and deep mouths, where the sea water penetrates the earth
6. the territory that groups the rivers that flow into the same ocean or sea.
10. are horizontal movements of water within seas and currents.
12. This forms part of an ocean. They are smaller.
14. it is the process that happens when the sun heats up water and turns into steam or vapour.
16. On low coasts, the sediments of the river are mixed with the marine ones, forming lagoons or marshes.
18. an important river in Galicia
21. they are of great extension and with salt water
22. are the regular movements of the seas in which the sea levels rise and fall.

1. It is a 30 % of all freshwater in and on the Earth.
2. a watershed found in Spain.
4. refers to all the water on the planet, in all three states
5. are small and shallow extensions of fresh water.
7. territory from which a river collects the waters to take them to the sea. Both the main river and its tributaries.
8. is a high-latitude region of the planet that is covered in ice, near the North and South Poles.
9. fresh water masses of an important extension and depth.
11. a river that flows into another river.
13. is a flowing body of fresh water.
15. occurs when so much water has condensed that the air cannot hold it anymore.
17. water vapour in the air that gets cold and changes back into liquid, forming clouds.
19. A body of water that surround continents.
20. rivers of ice that are formed by the accumulation of snow in mountainous systems or polar areas.