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