How deep is the deepest part of a typical continental shelf?
How deep is the deepest part of a typical continental shelf?
A continental shelf typically extends from the coast to depths of 100–200 metres (330–660 feet). It is gently inclined seaward at an average slope of about 0.1°.
Is the continental shelf the deepest part of the ocean?
Though the continental shelf is treated as a physiographic province of the ocean, it is not part of the deep ocean basin proper, but the flooded margins of the continent.
How deep is the continental slope?
The world’s combined continental slope has a total length of approximately 300,000 km (200,000 miles) and descends at an average angle in excess of 4° from the shelf break at the edge of the continental shelf to the beginning of the ocean basins at depths of 100 to 3,200 metres (330 to 10,500 feet).
What is the correct sequence of the following oceans in descending order of their areas?
What is the correct sequence of the following oceans in descending order of their areas?…done Oceanography.
| List I (Sea) | List II (Ocean) |
|---|---|
| 1. Kara Sea | Atlantic Ocean |
| 2. Baltic Sea | Arctic Ocean |
| 3. Weddell Sea | Southern Ocean |
| 4. Coral Sea??? | Pacific Ocean |
What is the correct sequence of oceans based on size?
The Global Ocean The five oceans from smallest to largest are: the Arctic, Southern, Indian, Atlantic and Pacific.
Which of the following is the cold Atlantic Current?
The two cold currents—East Greenland current and the Labrador current—flow from the Arctic Ocean into the Atlantic Ocean. The Labrador current flows along part of the east coast of Canada and meets the warm Gulf Stream.
Is Brazil Current is a cold current?
The only exception to this rule of the flow of ocean water is found in the Indian Ocean, where the direction of current flow changes with the change in the direction of monsoon wind flow….List of Ocean Currents of the World.
| Name of Current | Nature of Current |
|---|---|
| Rannell Current | Warm |
| Antilles Current | Warm |
| Brazilian Current | Warm |
| Labrador Current | Cold |
What is the cold current?
Cold currents are those which flow towards the equator and move towards the tropics or lower latitudes which are on the eastern side of ocean basins. The prominent example of cold current are the Labrador Ocean current and the East Greenland Current flows.
Is the Somali current warm or cold?
The Somali Current is a cold ocean boundary current that runs along the coast of Somalia and Oman in the Western Indian Ocean and is analogous to the Gulf Stream in the Atlantic Ocean.
Is the Norwegian current warm or cold?
Temperature. The average winter temperature of the Norwegian Coastal Current is about 3.5 °C and ranges from 2 to 5 °C, while in summer the temperature of the current is warmer as the tributary sources (Baltic sea, Norwegian fjords, rivers) are warmed up.
Why is a warming ocean a bad thing?
The ocean absorbs most of the excess heat from greenhouse gas emissions, leading to rising ocean temperatures. Increasing ocean temperatures affect marine species and ecosystems. Rising temperatures cause coral bleaching and the loss of breeding grounds for marine fishes and mammals.
What if Earth had more land than water?
The swapping of land and water would have many effects on Earth’s lifeforms. The temperature would rise drastically, the amount of oxygen in the atmosphere would decrease, and the amount of carbon dioxide would increase. All of this would make living on the planet hard.
What percentage of heat from global warming has the ocean absorbed in the past 40 years?
SOAK UP THE SUN What percentage of heat from global warming has the ocean absorbed in the past 40 years? 11% 35% 84% Water resists changes in temperature; it is slow to heat up and slow to cool. down. In scientific terms, water has high heat capacity. This means that, so far, Earth’s ocean has been.
How much higher are sea levels since the beginning of the 20th century?
Globally, sea level has risen about eight inches since the beginning of the 20th century and more than two inches in the last 20 years alone. All signs suggest that this rise is accelerating.
What percentage of heat does the ocean absorb?
90 percent
What holds the most heat in the atmosphere?
Methane. Methane, the main component of natural gas, is a potent greenhouse gas that traps about 20 times as much heat as carbon dioxide.
Is the Ocean continuing to warm?
Yes, the ocean is continuing to warm. Notably, all ocean basins have been experiencing significant warming since 1998, with more heat being transferred deeper into the ocean since 1990.
What are the warmest seas?
Answer: The hottest ocean area is in the Persian Gulf, where water temperatures at the surface exceed 90 degrees Fahrenheit in the summer. Another hot area exists in the Red Sea, where a temperature of 132.8 degrees Fahrenheit has been recorded at a depth of about 6,500 feet.
What is causing the oceans to warm?
The main source of ocean heat is sunlight. Additionally, clouds, water vapor, and greenhouse gases emit heat that they have absorbed, and some of that heat energy enters the ocean. Thus, heat energy in the ocean can warm the planet for decades after it was absorbed.