3.

The ocean floor is not flat. What two features are on the bottom of the ocean floor?

Features of the ocean include the continental shelf, slope, and rise. The ocean floor is called the abyssal plain. Below the ocean floor, there are a few small deeper areas called ocean trenches.

On the bottom of the ocean floor there is sand.

Explanation:

Sand from what i have been lead to believe is broken up sea shells and possibly rocks.

I hope this is correct!