Answer:
a. Payment of interest on notes payable - Operating Activity
b. Exchange of land for patent - Non Cash investing activity
c. Sale of building at book value - Investing Activity
d. Payment of dividends - Financing Activity
e. Depreciation - Operating Activity
f. Receipt of interest on notes receivable - Operating Activity
g. Issuance of Capital Stock - Financing Activity
h. Amortization of patent - Operating Activity
i. Issuance of bonds for land - Non Cash investing activity
j. Purchase of land - Investing Activity