1. small river flowing into a bigger main river   gulf   plateau   tributary   plain   Hint Half-n-half Clue   2. extensive stretch of elevated, level land   plateau   iceberg   beach   valley   Half-n-half Clue   3. piece of land surrounded by water   island   plateau   bay   iceberg   Half-n-half Clue   4. group of islands found close together in the sea   archipelago   beach   glacier   plateau   Half-n-half Clue   5. part of sea filling wide-mouthed opening of the land   isthmus   peninsula   bay   strait   Half-n-half Clue   6. narrow strip of water connecting two large bodies of water or seas   island   estuary   tributary   strait   Half-n-half Clue   7. sloping, sandy or pebbly, shore of a body of water   desert   beach   tributary   island   Half-n-half Clue