Great Salt Lake, It is the largest natural lake west of the Mississippi, as well as the largest terminal lake in the Western Hemisphere
C: Ecosystem 1
Because there’s not a lot of diversity in only 10 species, making it easy to wipe out the entire population.
The water from the ocean, when the ocean tectonic plates are subducted, moves around to the places where new gaps occur, usually creating a new sea that in time spreads more and more and in time there's every chance they will become new oceans.
Fractional Crystallization