What provides food and shelter to many ocean organisms?\nOptions:\n- (A) houses\n- (B) umbrellas\n- (C) limestone\n- (D) ferns\n- (E) sharks\n- (F) barnacles\n- (G) calcite\n- (H) sheds
Think hard. Detailed solution:
(G)
Coral reefs provide food and shelter to many ocean organisms.

Coral reefs are predominantly calcite.

Calcite provides food and shelter to many ocean organisms.

.

The final answer: (G)