Tag: relief of the ocean

Questions Related to relief of the ocean

Which waterway does not pass through the Panama Canal ?

  1. London-Honolulu

  2. New York-San francisco

  3. New York-Buenos Aires

  4. New York-Sydney


Correct Option: C
Explanation:

New York-Buenos Aires water ways does not passes through the Panama canal,

The Panama Canal is an artificial 82 km waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean. The canal cuts across the Isthmus of Panama and is a conduit for maritime trade.

The largest Fresh water lake is _____________.

  1. Lake Superior

  2. Caspian Sea

  3. Lake Baikal

  4. Hind Sea


Correct Option: A
Explanation:

Lake Superior, is the largest fresh water lake in the world. It is situated  on the United States/Canada border. It has the greatest surface area of 31,700 square miles.

Correct the false statements.

  1. Oceans trenches can be located near the continents

  2. Relief features of the oceans are like plains

  3. Most salt in the seas are washed into it from the land over centruries

  4. Temperature of ocean water remains the same across the globe


Correct Option: A

The continental slope comprises of ____________ of the ocean area.

  1. 5%

  2. 10%

  3. 15%

  4. 20%


Correct Option: C
Explanation:

The continental shelf is separated from the continental slope by the shelfedge or shelf-break at approximately 200 m depth. The gradient of the slope ($4^{\circ}$ on an average) is much higher than that of the continental rise $(1^{\circ})$. The continental shelf and slope together cover 15% of the total ocean floor, and the continental rise covers about 5%.

Continental shelf of the ocean occupies about _____ of the ocean area.

  1. 6.7%

  2. 7.6%

  3. 8.6%

  4. 9.6%


Correct Option: B
Explanation:

The submerged margins of continental mass extending from the shore to the first prominent break are sloped usually at a depth of about 120 m. Continental shelf occupies about 7.6% of the ocean floor. The width of the continental shelf varies considerably. The largest shelf the Siberian Shelf in the Arctic Ocean stretches to 1,500 kilometers in width.

The largest continental shelf is _____________ in the Arctic Ocean.

  1. North Sea

  2. South China Sea

  3. Siberian shelf

  4. Persian Gulf


Correct Option: C
Explanation:

The  Arctic Ocean has largest shelf that is the Siberian shelf. The continental shelf of the Siberian coasts of Russia are widest shelves which range in width from 480 km to 2,000 km. The continental shelfes are also quite wide to the north of Canada. 

Since 70.78 percent of the earth's surface is covered by water it is called ___________.

  1. blue planet

  2. red planet

  3. green planet

  4. living planet


Correct Option: A
Explanation:

The Earth is referred to as "the blue planet" because of the abundance of water on the planet. Over 70 percent of the Earth's surface is comprised of water, producing a vivid blue color when viewed from space

A narrow strip of water body joining two large water bodies is called ___________.

  1. gulf

  2. bay

  3. strait

  4. isthmus


Correct Option: C
Explanation:

A strait is a narrow waterway that connects two larger bodies of water. It can develop after water breaches an isthmus, which is a narrow strip of land connecting two bodies of water. A strait can also be caused by water overflowing onto eroded land.

Which are called the flattest and smoothest regions of the oceans?

  1. Continental shelf

  2. Continental slope

  3. Deep sea plain/Abyssal Plain

  4. Oceanic deeps or trenches


Correct Option: C
Explanation:

An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 metres and 6,000 metres. Lying between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. 

The Suez Canal connects the Mediterranean Sea with the _________.

  1. Arabian Sea

  2. Red Sea

  3. Black Sea

  4. Persian Gulf


Correct Option: B
Explanation:

The Suez Canal is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea through the Isthmus of Suez. It was opened in November 1869 after 10 years of construction work and it allows ship transport between Europe and eastern Asia without navigation around Africa.