About What Percent Of Earth S Surface Is Ocean Floor

The rest is saltwater almost all of which is in the ocean the area of the world ocean is about 361 9 million square kilometers 139 7 million square miles which covers about 70 9 of earth s surface.

About what percent of earth s surface is ocean floor.

A very level area of the deep ocean floor usually lying at the foot of the continental rise. The ocean is a continuous body of salt water that covers more than 70 percent of the earth s surface. What is water land and clouds. Throughout history the ocean has been a vital source of sustenance transport commerce growth and inspiration.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Average salinity is 3 5 or 35 parts 1000. Less than 3 is freshwater. Using this technology 10 to 15 of the ocean floor has been mapped.

The ocean is the lifeblood of earth covering more than 70 percent of the planet s surface driving weather regulating temperature and ultimately supporting all living organisms. The boundaries between these regions have evolved over time for a variety of historical cultural geographical and scientific reasons. What is the continental shelf. What percent of the earth s surface is covered by the global ocean.

The ocean floor. What are the three basic components of earth. A switch in technology from satellite to sonar detection is currently needed to map the ocean floor in greater detail. The percent of earth s surface covered by water.

The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. The total mass of the hydrosphere is about 1 4 quintillion tonnes 1 4 10 18 long tons or 1 5 10 18 short tons which is about 0 023 of earth s total mass. While there is only one global ocean the vast body of water that covers 71 percent of the earth is geographically divided into distinct named regions. The second largest ocean is the atlantic ocean.

Begins at the shoreline. Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet. Modern sonar detection systems can create maps of the ocean floor with resolutions of around 100 meters. Usually expressed in parts per thousand.

It covers an estimated 20 percent of the earths surface with 106 400 000 sq km total area.