-The sea or ocean is blue, because of the different wavelengths oflight. blue being the longest. The deeper the water, the 'deeper' blue it is.
-The ocean's deepest area is the MarianaTrench, located in the western NorthPacific Ocean, is about 11 km (almost 7miles, or almost 36,000 feet) deep! The trench is 1,554 miles long and 44 mileswide, and is like the Grand Canyon of the ocean, although it is 120times larger. Contrary to what you might think,the trench is wide
- almost 5 times wider than it is deep!
-The Northern Hemisphere contains more land than ocean - 39% land versusthe 19% land in the Southern Hemisphere.
-The ocean water is salty because water running off the land, captures minerals, including salts, whichform salt water.
- Life most likely originated in the ocean
-The average depth of the ocean is 2.4 miles, or 3,800 meters.
-In the deepest ocean waters (more than 1km deep) there is still light coming not from the sun butthe sea creatures themselves! This phenomenon is known as bioluminescenceand is a chemical reaction in a microbe oranimal body that creates light without heat, and it is very common.
-The ocean is able to absorb and store heat that it gets from the sun. As a matter of fact, the upper 10 feet (3 meters) of the ocean hold
the same amount of heat as is in the entire atmosphere. Water from the ocean is also the source of most of the water in the rain cycle.
-The "El Niño" phenomenon and the "Gulf Stream" current affect the temperature of the atmosphere and its circulation all over the world.
. If you want to picture what our Cradle of Life wouldlook without the Oceans, just look at Venus where a greenhouse effect has rendered the surface hot enough to meltmetal.
MountEverest (the highest point on the Earth's surface 5.49 miles) is morethan 1 mile shorter than the Challenger Deep (the deepest point in theocean at 6.86 miles)
The longest continuous mountain chain known to exist on Earth resides in the ocean at more than 40,000 miles long
One third to one fourth of the world's ocean fish catch is used to feed animals.