Answer to Question 1
Both trial balances show whether or not the debits and credits are equal. The trial balance before closing contains the asset, liability, owner's equity, revenue, and expense accounts. The post-closing trial balance is prepared after closing and contains only the real (permanent) accounts (asset, liability, and Capital accounts). The nominal (temporary) accounts are closed and do not have a balance. Also, the trial balance before closing does not have the current balance of the owner's Capital account. The post-closing trial balance has an updated Capital account balance which includes net income (loss) and withdrawals.
Answer to Question 2
Internal sources of liquidity include the cash received from selling products and services; external sources of liquidity include cash received from outside sources such as borrowing or selling the firm's stock to raise funds. A material deficiency in liquidity means that a firm may not have enough cash to make it through another operating cycle. If a firm has a material deficiency the firm must discuss how this deficiency will be remedied so that bankruptcy will hopefully be prevented.
Energy Balance
The early development of the mammalian brain illustrated in schematic horizontal sections. Compare ...
Sodium’s chief role is regulation of fluid balance
Energy Balance and Imbalances
Acid–Base Balance
Acid–Base Balance