The uniform stacking of layers of nacre below the surface of the shell also causes interference effects that contribute to the iridescent colors. The pearl derives its iridescence from the diffraction and interference of white light, caused by tiny overlapping platelets of calcium carbonate.
like assets many liabilities are intuitive however there may be some instances where a liability needs to be recorded although the company may not have perceived it as one an example of this would be a finance lease where there is no present obligation to pay the future lease payments
In simple words, liability is an obligation of the entity to transfer cash or other resources to another party. Liability could for instance be a bank loan, which obligates the entity to pay loan installments over the duration of the loan to the bank along with the associated interest cost. Alternatively, an entity's liability could be a trade payable arising from the purchase of goods from a supplier on credit.