THIS USER ASKED ๐Ÿ‘‡

Marine snow is _______.
a.
pieces of organic matter that were once part of living organisms
b.
a mixture of living plankton
c.
snow from land that has entered aquatic ecosystems
d.
large salt crystals that have not dissolved in ocean water

THIS IS THE BEST ANSWER ๐Ÿ‘‡

Seagrasses are pieces of organic matter that were once part of living organisms.