Final answer:
The sale of land for cash is a cash inflow in investing activities. A trade surplus means capital inflow to an economy, whereas a trade deficit indicates capital outflow.
Step-by-step explanation:
The sale of land for cash is classified as a cash inflow in investing activities under the cash flow statement. It represents money coming into the business from the sale of a long-term asset. In contrast, a trade surplus indicates an overall inflow of financial capital to an economy, as it means the value of exports exceeds the value of imports. A trade deficit, conversely, represents an overall outflow of financial capital, as it implies more money is leaving the economy to pay for imports than is entering from exports.