A watershed is the drainage area of a landscape where water from rain or melting snow and ice drains downhill into a body of water such as a river, lake, reservoir, pond, estuary, wetland, aquifer, sea, or ocean.
The sporophyte generation produces spores that grow into a GAMETOPHYTE.
Degradation means the wearing down of or slow lowering to a weaker position.
This isn't a question, however if you really need to wash your hands you ares is a good place to do so.
It is most affected in the surface zone.
