One example of physical aspect of environment.

Soil, rivers, mountains, lakes etc

Explanation:

The physical environment encompasses the natural and man made part of the environment. Examples are mountains, lakes, valleys, rivers, etc.

The physical environment supports the activities of other components of the environment. All the bioitc and abiotic factors interacts to furnish this aspect of our environment.

This aspect of the environment helps to regulate and gives a balance to other aspects of the environment. We should note that all aspects of the environment constantly interacts with one another and are not independent of each other.

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explanation:

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.