When the image of a distant object is brought into focus in front of a person's retina, the defect is called
a. nearsightedness.
b. farsightedness.
c. chromatic aberration.
d. spherical aberration.

it becomes positively charged by charging it

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods