The virginia company used the "headright system" to attract new english colonists to north america by giving them 50 acres of land to farm. which problem were they most correctly trying to solve?
a) they were trying to solve a shortage of gold in the colonies.
b) they were trying to solve a shortage of soldiers in the colonies.
c) they were trying to solve a shortage of tobacco in the colonies.
d) they were trying to solve a shortage of labor in the colonies.

D) They were trying to solve a shortage of labor in the colonies.

Explanation:

The headright system was created by the Virginia Company to attract new laborers and workers to Virginia, so that they could work the land and populate the colony. As a result, newcomers were given fifty acres of land, and those who already lived there received one hundred acres, which were mostly used for tobacco plantations. Thus, the program lead to the arrival of families and servants, and to the creation of large manors and comunities.

experiments.

surveys.

questionnaires.

interviews.

case studies.

participant and non-participant observation.

observational trials.

studies using the delphi method.

the earth’s crust is broken into separate pieces called tectonic plates (fig. 7.14). recall that the crust is the solid, rocky, outer shell of the planet. it is composed of two distinctly different types of material: the less-dense continental crust and the more-dense oceanic crust. both types of crust rest atop solid, upper mantle material. the upper mantle, in turn, floats on a denser layer of lower mantle that is much like thick molten tar.

each tectonic plate is free-floating and can move independently. earthquakes and volcanoes are the direct result of the movement of tectonic plates at fault lines. the term fault is used to describe the boundary between tectonic plates. most of the earthquakes and volcanoes around the pacific ocean basin—a pattern known as the “ring of fire”—are due to the movement of tectonic plates in this region. other observable results of short-term plate movement include the gradual widening of the great rift lakes in eastern africa and the rising of the himalayan mountain range. the motion of plates can be described in four general patterns:

collision: when two continental plates are shoved together

subduction: when one plate plunges beneath another (fig. 7.15)

spreading: when two plates are pushed apart (fig. 7.15)

transform faulting: when two plates slide past each other (fig. 7.15)