David's marketing research returned the finding that customers were staying away from his bookstore because of a lack of services like gift cards, return policies, and special orders. david was shocked. "nobody ever asks about that stuff! if it were that important, people would ask about it." david is likely suffering from a(n) gap.

The knowledge gap

Explanation:

The knowledge gap is based on a Hypothesis that suggests that absorption of knowledge differs with differences in socio-economic status of individuals those with high socioeconomic status seems to absorb

information faster than those at the lower status

This doesn't mean that those who have lower socioeconomic status know nothing but it just states that acquiring information and absorbing it is much faster and better for those with high socioeconomic status.

Why does the Knowledge Gap Exist?

According to this hypothesis there is a belief that the higher the socioeconomic status of an individual the better are the chances to receive teh best education , with better education a person is able to acquire , comprehend and effectively use that information because they have been previously equipped on how to search for information and how to use it.

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)