Final answer:
Buildings and patents are classified as fixed assets on the balance sheet; cash is a current asset, and trademarks are intangible fixed assets.
Step-by-step explanation:
On the balance sheet, fixed assets are long-term tangible assets that are used in the operations of a business and are not expected to be consumed or converted into cash quickly. The fixed assets classified on a balance sheet include buildings and patents, because they are lasting nature and used to produce goods or services. On the other hand, cash is considered a current asset, not a fixed asset, because it is a liquid resource meant to be used in the short term. Additionally, trademarks can be considered intangible fixed assets due to their role in long-term brand and reputation building.