What does an economist mean by the term land? farmland only

all natural resources used to produce goods and services

food crops grown on farmland as well as the farmland itself

goods and services that are produced from the land

The substances that are necessary for producing of certain hormones and that store and transport vitamins

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

An alarm clock has a current of 4.5 amps and a resistance of 3.2 ohms. what is the voltage in the circuit? a.1.4 volts b.0.71 volts c.14 volts d.46 volts