The laws that established an official system of slavery in the american colonies
a) stated that children could not be born into slavery.
b) allowed enslaved people to go free if they had been indentured.
c) made it legal to keep enslaved people for their entire lives.
d) required that a person’s enslavement end after a period of time.

C) Made it legal to keep enslaved people for their entire lives.

Explanation:People were legally slaves all their lives such that the children born by a slave mother they also became slaves irrespective of whether their fathers were not under or born in slavery Institution.

They worked as slaves and even got traded as slaves nomatter where they will be located but that was the Tuttle they had .

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)