Loam is naturally present in the soil and also all the other necessary building materials are easy to come by.

Enough sodium is naturally present in foods and beverages to meet the body's need for it.

The bacteria that are naturally present in your mouth may cause an eye infection.

Most of these elements are naturally present in soil.

They may have been present naturally or caused when a diamond was cut.

Traces of 19-norandrosterone may be naturally present in human urine.

Tooth decay is caused by bacteria naturally present in one's mouth.

Flavors may be naturally present in the beverage's base material.

These bacteria are naturally present on our skin as part of the human flora.

These are part of bacteria cells which are naturally present in food.