Which fact would make the best evidence to support the statement that "thomas edison's most important invention was the light bulb"? a) the light bulb reduced the crime rate in many urban areas. b) thomas edison also invented the phonograph, the motion picture, and the stock ticker. c) americans gained control over light in homes and offices, independent of the time of day. eliminate d) the light bulb was first tested by thomas edison in 1879; he patented the invention in 1880.

Option C

Explanation:

After the invention of the Light bulb Americans gained control over light this invention changed the Human existence by lighting the night and gain access to human activities even at night. one of the important impacts of the light bulb on Americans is it increased knowledge because we would not able to read in the night but after the invention of the light bulb change the whole scene by illuminating Night and help us in brightening up our future.

no

explanation:

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)