Is a system that contains only one substance necessarily homogeneous

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal.a.added more engine powerb.activated a connection to the pedalc.stalled the engined.released a connection to the pedal

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains