RAFA CROSSWORD

3. a barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply.
5. the expanse of salt water that covers most of the earth's surface and surrounds its landmasses
9. depending on movement for its effect.
11. a compound or substance that has been purified or prepared, especially artificially.
13. a large body of water surrounded by land.
15. is a peace of land surrounded by water.
18. is a place that the sun is very hard.
19. upward current of warm air, used by gliders, balloons, and birds to gain heigh
20. an area of open land, especially one planted with crops or pasture, typically bounded by hedges or fences.

1. denoting, relating to, or operated by a liquid moving in a confined space under pressure.
2. the part of the land near the sea; the edge of the land.
4. a large underground chamber, typically of natural origin, in a hillside or cliff.
6. a large natural stream of water flowing in a channel to the sea, a lake, or another such stream.
7. a device used to convert electricity into light
8. a naturally raised area of land, not as high or craggy as a mountain.
10. piece of land surrounded by water.
12. a source of energy that is not depleted by use, such as water, wind, or solar power.
14. roughly circular line, route, or movement that starts and finishes at the same place.
16. a loose granular substance, typically pale yellowish brown, resulting from the erosion of siliceous and other rocks and forming a major constituent of beaches, riverbeds, the seabed, and deserts.
17. the height reached by the water in a reservoir, river, storage tank, etc.