Bottom Relief
Marginal Seas of the Indian Ocean
Gulfs of the Indian Ocean
Passages of the Indian Ocean
Potpourri
100

Term for the gently sloping sea floor at edge of most land masses

the Continental Shelf

100

This colorful sea cuts through 2 geological plates: the Nubian & the Arabian; It's the body of water between Sudan & Saudi Arabia

the Red Sea

100

An arm of the Red Sea, this gulf bears the name of the canal it feeds into

Suez

100

Meaning "Gate of Tears", the Bab el Mandeb is a 20-mile-wide strait allowing passage from the Gulf of Aden into this sea

the Red Sea

100

The thermocline, a layer of the ocean from around 660' to 3,000' down, is so-called because this declines rapidly

the temperature

200

Portugal's island of Madeira sits at the top of a "shield" one of these, rising up from the floor of the Atlantic Ocean

a volcano

200

This sea, located between the island of Timor and northern Australia, is known for its rich petroleum and natural gas reserves

the Timor Sea

200

 Kuwait is found on the Arabian Peninsula along the northwestern shores of this gulf

the Persian Gulf

200

This body of water gets a little saltier as the Suez Canal sends seawater in from the Red Sea

the Mediterranean

200

Commonly expressed in grams per cubic centimeter, density is calculated by dividing mass by this

volume

300

It's a bowl-shaped depression on the ocean floor, or a washbowl or sink in your house

a basin

300

The Indus River flows 1,900 miles before emptying into this sea that shares its name with an adjacent peninsula; The strategic Strait of Hormuz leads from the Persian Gulf into this body of water to the south.

the Arabian Sea
300

This gulf named for a Yemeni seaport was once a haven for piracy such as the hijacking of the Maersk Alabama in 2009

Gulf of Aden

300

This Indian Ocean channel separates Madagascar from another "M" on the African mainland

the Mozambique Channel

300

An isohaline on an ocean map connects points with the same amount of this; This property of seawater is usually 3.5% but in parts of the Baltic Sea, it can be under 1%, due to melting ice 

salinity

400

Underwater canyons are part of the vast submarine mountain range called the mid-Atlantic this

the Ridge

400

This sea, bounded by the coasts of Myanmar & Thailand to its east, is a marginal sea of the Indian Ocean 

the Andaman Sea

400

Bangkok is the leading port on this gulf, an inlet of the South China Sea

the Gulf of Thailand
400

This strait at one end of the Persian Gulf carries 1/3 of the world's seaborne oil & was the scene of international tensions in 2019

the Strait of Hormuz

400

This physical factor increases by about one atmosphere for every 10 meters of depth in the ocean.

pressure

500

Examples of this type of steep-sided depression in the sea floor include the Aleutian, Sunda & Mariana

a trench

500

This sea separates the Maldives & Sri Lanka from the Asian mainland

the Laccadive Sea

500

The Sundarbans is the swampy delta where the Ganges, Meghna & Brahmaputra rivers all flow into this bay

Bay of Bengal

500

This strait west of Malaysia is the shortest sea route from India to China

the Strait of Malacca

500

The surface temperature of the ocean can reach up to 32°C in the summer, especially in this body of water located between the Arabian Peninsula and Iran

the Persian Gulf