Answer:
Depreciation and amortization are non cash expenses.
Explanation:
Amortization expense is a non cash expense because amortization is an accounting technique used to lower the book value of a loan or intangible asset and since there are no payments or cash involved this is a non cash expense.
Depreciation is also a non cash expense as it is accounting technique used to lower the book value of fixed assets therefore no cash is used in this transaction and it is a non cash expense.
Income tax expense and interest expense are not non cash expenses as cash is involved in these transactions.
