The carbon cycle ensures that carbon is not lost. which is another important benefit of the carbon cycle?
the carbon cycle regulate earth's temperature.
the carbon cycle ensures that living things have a continual source of hydrogen.
the carbon cycle transport nutrients in bodies of water.
the carbon cycle ensures that there is a continual supply of water.

The most appropriate answer would be "The carbon cycle helps regulate Earth's temperature".

The carbon cycle regulates the temperature of the earth by regulating the amount of carbon dioxide in the atmosphere.

Carbon dioxide along with other greenhouse gases such as water vapors, methane et cetera regulate the global temperature through the greenhouse effect.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.