Who were the mound builders?
a.
hunter-gatherers who built mounds
b.
farmers near the mississippi
c.
the iroquois
d.
the navajo

The correct answer is A. The Mound Builders were hunter-gatherers who built mounds.

Explanation:

Mound Builders is a collective name for some of the ancient Indian peoples of North America, that artificially created mounds, which were used by various early Indian cultures for funeral, residential and ritual purposes.

The mounds were built by different peoples. They had different cultures and were not linked by common traditions and traditions. Therefore, any summary is inaccurate.

The oldest mounds found are those of the archaic site of Watson Brake, in northeastern Louisiana, which are dated to 3500 BC.

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)

answer; silence;