1. triangular patch of deposited silt at the mouth of a river formed by its diverging branches   Hint First letter clue   2. narrow strip of land joining two larger land masses   First letter clue   3. piece of land almost surrounded by water (but joined to mainland on one side)   First letter clue   4. dry barren land that receives little or no rainfall   First letter clue   5. large area of sea partly surrounded by land   First letter clue   6. thick mass of floating ice in the sea   First letter clue   7. group of islands found close together in the sea   First letter clue