Read the definitions and complete the blanks with given words.sun cream / lake / tent / painkiller / waterfall / river / sleeping bag / mountain / map / beach1. a very high hill, often with rocks near the top2. a natural flow of water that continues in a long line across land to the sea/ocean3. a place where a stream or river falls from a high place, for example over a cliff or rock4. a large area of water that is surrounded by land5. an area of sand or small stones, beside the sea or a lake6. a shelter made of a large sheet of canvas, nylon, etc. that is supported by poles and ropes fixed to the ground, and is used especially for camping7. a drug that reduces pain8. cream that you put on your skin to protect it from the harmful effects of the sun 9. a thick warm bag that you use for sleeping in, for example when you are camping10. a drawing or plan of the earth's surface or part of it, showing countries, towns, rivers, etc.