Asocial scientist is trained to study the contents of garbage heaps. "what can we learn from studying garbage? " would most likely be asked by a(n)

The answer is "Anthropologist".

Anthropology refers to the study of what makes us human. Anthropologists adopt a wide strategy to understanding the a wide range of parts of the human experience, which we call comprehensive quality. They consider the past, through archaic exploration, to perceive how human gatherings lived hundreds or thousands of years back and what was essential to them. They consider what makes up our natural bodies and hereditary qualities, and additionally our bones, eating routine, and wellbeing. Anthropologists likewise contrast people and different creatures (frequently, different primates like monkeys and chimpanzees) to perceive what we have in the same way as them and what makes us interesting.

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)