Gabriel is a sixteen-month-old boy who lives with his mom and grandma. he calls his mom "mama"and his grandma "nona." last week, gabriel was at the grocery store with his mom and saw a little ladywith white hair and glasses that looked similar to his grandma. he immediately called her "nona."gabriel demonstrateda) an underextension error. b) a misuse of telegraphic speech. c) an overextension error. d) a phonemic error. e) an overregularization error.

an overextension error

Explanation:

This is an error that occurs when a child at their young age use the same word for multiple unrelated things because they may be similarities in their mind which may mean that this is the same thing.

For example Gabriel thinks that since her grandmother whom she calls 'Nona' has white hair then everyone with white hair can be called 'Nona' this is an overextension error.

Gabriel has little ability to differentiate vocabulary at her age she then extends it use .

the answer is longitudinal model

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)