The average depth of the ocean is about 3,688 meters (12,100 feet). The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam.
Which one is larger the average depth of the ocean or the average land elevation?
The average depth of the world ocean is about 3800m (12,500 ft), which is about four times deeper than the average land elevation is high (840m or 2800 ft).
How does the area of Earth’s surface covered by oceans compare with the area covered by land?
How does the area of Earth’s surface covered by oceans compare with the area covered by land? Nearly 71 percent of Earth’s surface is covered by global oceans, whereas roughly 29 percent of Earth’s surface is covered by land.
What is salinity and how is it usually expressed what is the average salinity of seawater?
Salinity of seawater is usually expressed as the grams of salt per kilogram (1000 g) of seawater. On average, about 35 g of salt is present in each 1 kg of seawater, so we say that the average salinity of the ocean salinity is 35 parts per thousand (ppt). Note that 35 ppt is equivalent to 3.5% (parts per hundred).
Which is greater the average depth of the ocean or the average height of the continents above the sea level?
2. Which is greater: the average depth of the ocean or the average height of the continents about sea level? The average land elevation is only 840 meters, but the average ocean depth is 4 1/2 times greater.
Which is the largest and deepest ocean in the world?
The Pacific Ocean is the largest and deepest of the world ocean basins. Covering approximately 63 million square miles and containing more than half of the free water on Earth, the Pacific is by far the largest of the world’s ocean basins.
How much area is covered by all the ocean of the earth?
About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water.
How much of the earth’s surface does the Pacific Ocean cover?
Covering more than 30 percent of the Earth’s surface, the Pacific Ocean is the largest water mass on the planet. With a surface area of more than 155 million square kilometers (60 million square miles), this ocean basin is larger than the landmass of all the continents combined.
Why does salinity change with depth?
The water molecules pack together tighter as pressure increases -the pressure increase with depth, due to the weight of the water above, and causes the greatest density changes in seawater with depth (greater than the density changes due to temperature and salinity changes).
WHat is the average salinity of seawater WHat units are normally used and why are those units useful?
WHat units are normally used and why are those units useful? The salinity of seawater is typically about 35 parts per thousand (3.5%). The advantages of expressing salinity in parts per thousand are the decimals are often avoided and values convert directly to grams of salt per kilogram of seawater.
WHat is salinity and how is it usually expressed WHat is the average salinity of seawater quizlet?
Salinity is a measure of the total dissolved material in water. It is usually expressed in parts per thousand. The average salinity of the ocean is 35 parts per thousand.
Which is the scariest ocean?
The Mariana Trench Is the Deepest Point on Earth and We Have No Idea What All Is Down There. The Corryvreckan Maelstrom Is a Permanent, Violent Whirlpool. The Terrifyingly Deep Great Blue Hole. The Devil’s Sea Is the Bermuda Triangle’s Twin. The Remains of a Devastating WWII Battle Lie at the Bottom of the Chuuk Lagoon.
Has anyone been to bottom of Mariana Trench?
While thousands of climbers have successfully scaled Mount Everest, the highest point on Earth, only two people have descended to the planet’s deepest point, the Challenger Deep in the Pacific Ocean’s Mariana Trench.
Who has been to the Mariana Trench?
On 23 January 1960, two explorers, US navy lieutenant Don Walsh and Swiss engineer Jacques Piccard, became the first people to dive 11km (seven miles) to the bottom of the Mariana Trench. As a new wave of adventurers gear up to repeat the epic journey, Don Walsh tells the BBC about their remarkable deep-sea feat.
