Corporations must file tax returns in all U.S. jurisdictions imposing an income tax. Such returns are a self-assessment of tax. Corporate income tax is payable in advance installments, or estimated payments, at the federal level and for many states.
An ashen skin color is a result of inadequate oxygen circulation or perfusion.
These skin patches are missing the skin pigment melanin; in most cases, the condition is triggered by sunburn. Normally, excessive sun exposure first causes skin reddening, followed by peeling of the outer skin layers, and formation of darker skin in the exposed area (tanned skin).