Solved cryptogram

The ocean averages several kilometers in depth, so the sea floor is mostly abyssal plain.

Earth Science Facts, sourced to NOAA.

Or go to the puzzle’s own page first.

What it means

People picture the ocean as the shallow, sunlit water they can swim in, and that band is a thin rim around the edge of the continents. The average depth is a little under four kilometers, and the great majority of the sea floor is flat, cold, dark plain lying far below the reach of sunlight. More than nine tenths of the ocean by volume has never seen a photon from the sun.

The claim comes from NOAA.

Nearby in the collection

The facts either side of this one.

About as hard as this one

Scored closest to it by the model behind our guide to solving cryptograms.

Every Earth Science Facts cryptogram · All fact collections