D)all of the above i think
Mitochondria since it’s the power house of the cell where the energy for this one is produced
May occur in oceans is a type of transforms boundary is a region where earthquakes occur
Space actually, as far as we know gravity is just a manifestation of the warping of three dimensional space created by matter. Without space, all else is doomed.
Yes the Lawn mower is an example of a Compound machine
