Read the excerpt from "black hole beginnings."
which statement best describes the cause and effect
relationship(s) in this excerpt?
as the star material gathers, its inward pressure grows,
nuclei respond by zipping and zooming faster and faster,
veering away from each other all the while.
one cause (star material gathers) leads to two effects
(inward pressure grows and nuclei zip and zoom).
one cause (star material gathers) leads to one effect
(inward pressure grows), which becomes a cause of two
additional effects (nuclei zip and zoom, and nuclei veer
away from each other).
one effect (nuclei zip and zoom) is the result of two
causes (star material gathers and inward pressure
grows).
two effects (inward pressure grows and nuclei veer away
from each other) are the result of two causes (star
material gathers and nuclei zip and zoom).