"the broad-spectrum revolution was a significant event in human evolution because
a. it led to the extinction of the neandertals, who had survived by eating big-game animals
b. it marked the sudden advent of behavioral modernity
c. it brought about a new tool tradition based on flaked tools
d. it provided new environmental circumstances that made important sociocultural adaptations, like the development of plant cultivation, more likely
e. it made possible amhs' colonization of africa"

D) it provided new environmental circumstances that made important sociocultural adaptations, like the development of plant cultivation, more likely

Explanation:

 The broad-spectrum revolution are basically the hypothesis which provided the new environmental circumstances that made important sociocultural adaptation. This hypothesis basically explained the agriculture adoption and increased the development in the food production and plant cultivation. In the broad spectrum revolution the growth of plants and the animals become popular as there is increased in demand of food so the animal become scarce in search of food.

answer; self-efficacy;

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)