Solve these clues to fill the grid.
- The place where something begins, where it springs into being
- 2 Across
- To cause to unite with the greatest possible amount of another substance
- 8 Across
- A low ___ adjacent to a river that is formed chiefly of river sediment and is subject to ___
- 9 Across
- The motion characteristic of fluids
- 1 Down
- Long stream of water flowing to the sea (plural)
- 3 Down
- A branch that flows into the main stream
- 4 Down
- The opening through which food is taken in and vocalizations emerge
- 5 Down
- The occurrence of surplus liquid exceeding the limit or capacity
- 6 Down
- The rising of a body of water and its overflowing onto normally dry land (plural)
- 7 Down