The Amazon River Flows Backwards, And Now Scientists Have Figured Out Why. ESA. The shape of the Amazon Basinm mapped here using satellite altimeters is a relatively recent feature of the Earth. The Amazon once flowed in the opposite direction, from east to west. Reversing the direction of the Earth's largest river is no trivial thing, and geologists have pondered the cause for some time. In Earth and Planetary Science Letters The University of Sao Paulo's Dr Victor Sacek has demonstrated that nothing more than erosion is needed to explain this enormous shift.
An allowance for bad debt, also known as an allowance for doubtful accounts, is a valuation account used to estimate the portion of a bank's loan portfolio that may ultimately be uncollectible. When a borrower defaults on a loan, the allowance for bad debt account and the loan receivable balance are both reduced for the book value of the loan, or the outstanding loan balance.
Bad Debts. For tax purposes, you have a âbad debtâ when youâre owed money and you canât collect it. There are two kinds of bad debts: business and nonbusiness. You have a business bad debt when itâs related to your trade or business. All other bad debts are nonbusiness bad debts, like the money you lend to a friend.onât panic. If you didnât take a deduction in the year it became worthless, you may be able to file a claim for a credit or refund due to the bad debt. You have to file an amended return for the year the debt became worthless.