Carbon can be stored in the ocean as _. A. "locking" carbon
B. carbonic acid
C. calcium carbonate

A. "locking" carbon

i think

Explanation:

Carbon can be stored in the ocean as carbon acid

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

did you fail the test? xd