Which part of the ocean floor marks a very steep slope leading to the deep ocean

continental slope
continental margin
continental ridge

Continental Ridge should be the correct answer

Your question: Which part of the ocean floor marks a very steep slope leading to the deep ocean

Your Continental Slope

Continental Slope - the steep gradient that leads to the deep-ocean floor and marks the seaward edge of the continental shelf

It may have some of the same features that it’s mother does but, it may have some of the same features that it’s father has as well.

1.989×10^30 kg is the weight of the sun.