Question

sea ice forms ________.
o when super - chilled ocean waters can no longer hold dissolved sa
o as seawater begins to freeze at the oceans surface
o as icebergs formed at great depth rise to the surface

Explanation:

Sea - ice forms when seawater freezes at the ocean's surface. Super - chilled ocean waters not holding dissolved salt is not the main process for sea - ice formation. Icebergs rising from great depth are not how sea - ice forms; they are large chunks of ice that break off from glaciers or ice shelves.

Answer:

as seawater begins to freeze at the ocean's surface