Question

b. select the following item that would not be an example of \land\ as an economic concept.
a farmers field
the grass that feeds the cattle of a rancher
the water used on a farmers field
the tractor the farmer uses

Explanation:

In economics, "land" as a factor of production refers to natural resources provided by nature. A farmer's field, grass for cattle, and field water are all natural resources. A tractor is a man-made capital good, not a natural land resource.

Answer:

the tractor the farmer uses