Question

With carbon dioxide into the ocean, it reacts with water and carbonate to form

Carbonic acid

Bi carbonate

Calcium carbonate

Oxygen

Answer 1

When carbon dioxide (CO₂) enters the ocean, it reacts with water (H₂O) to form carbonic acid (H₂CO₃). This carbonic acid can then dissociate into bicarbonate (HCO₃⁻) and hydrogen ions (H⁺). Therefore, the correct answer is:

**Carbonic acid**