D Would Be The Best Choice
Let's eliminate this one by one.
Animal cell does not have walls. So we can eliminate The third option.
Plant cells does have walls, but they also have well-defined nucleus. So we can eliminate the second option
The leave : A. Prokaryotic as the answer
hope this helps
Plate tectonics located in our crust crashing or colliding into each other cause earthquakes to occur.
Sound waves are both compressional and longitudinal, (although we frequently draw them as transverse waves).
Longitudinal waves are where the particles of matter collide into one another, pushing them into the next and then oscillating back. This is how sound travels. This is also why sound can only travel through a medium, it cannot travel through a vacuum, as is shown here: