What is the continental shelf.
About what percent of earth s surface is ocean floor.
The ocean is a continuous body of salt water that covers more than 70 percent of the earth s surface.
Less than 3 is freshwater.
Ocean currents govern the world s weather and churn a kaleidoscope of life.
Average salinity is 3 5 or 35 parts 1000.
It covers an estimated 20 percent of the earths surface with 106 400 000 sq km total area.
The second largest ocean is the atlantic ocean.
A switch in technology from satellite to sonar detection is currently needed to map the ocean floor in greater detail.
The ocean floor.
The boundaries between these regions have evolved over time for a variety of historical cultural geographical and scientific reasons.
Throughout history the ocean has been a vital source of sustenance transport commerce growth and inspiration.
What is water land and clouds.
The sediments that make up.
What percent of the earth s surface is covered by the global ocean.
The percent of earth s surface covered by water.
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.
What are the three basic components of earth.
Modern sonar detection systems can create maps of the ocean floor with resolutions of around 100 meters.
Usually expressed in parts per thousand.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
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.
Begins at the shoreline.
A very level area of the deep ocean floor usually lying at the foot of the continental rise.
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.
The total amount of solid material dissolved in water.