The law of mass digital storage suggests a. the amount of digital information remains the same each year b. the amount of computers doubles each year c. the amount of digital information doubles each year d. the amount of computer users doubles each year e. the amount of computers triples each year

C. the amount of digital information doubles each year

Explanation:

The Law of Mass Digital Storage states that the amount of digital information doubles each year while the price of storage decreases exponentially.

Data first used to be stored in the groves of magnetic tapes. Then disks started to be used. The disks which were made of polycarbonate were encoded data by the use of a laser which condensed matter into a smaller form factor. Then these hard disk started to being used which shrunk the form factor further and continues to do so while getting cheape

It can be seen that the form factor has gotten smaller while the price also reduces.

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)

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