13) To record the depletion of natural resources, the most common method is to use the double declining–
balance method.
14) Patents, copyrights, and franchises are intangible assets with the same number of years of useful life.
15) Copyright protection expires 70 years after the author’s death.
16) The portion of a natural resource cost that is recognized as an expense is ________.
17) The intangible that is recorded when a business is purchased for more than the fair value of the net
assets is known as ________.
18) The three categories of writing off plant assets, natural resources, and intangible assets are ________,
________, and ________, respectively.