Question

Marin animals use carbon dioxide in which form ​

Answer 1

Answer:

Carbon is used by marine animals in many ways. The main way is via photosynthesis by phytoplankton, where carbon dioxide and sunlight are used to produce sugars and a waste product of oxygen.

In addition, carbon can be used in the calcium carbonate shells of animals including corals, coccolithophores, clams, etc. Carbon makes its way into shells via carbon dioxide from the air: first the CO2 in the air gets incorporated in the water in the form of carbonic acid (H2CO3) which then separates into a lone H+ ion and bicarbonate (HCO3-) which then further separates into 2H+ and carbonate (CO3 2-). Organisms that have calcium carbonate shells (which comes in 2 forms, aragonite and calcite) take the carbonate ions from the water and incorporate them into their body.

Answer 2

Answer:

for decomposition

Explanation:

this is because of heigh pressure and chemical substance