1.
The deepest point in the Indian Ocean is
Correct Answer
B. Sunda Trench
Explanation
The Sunda Trench is the correct answer because it is the deepest point in the Indian Ocean. It is located off the coast of Indonesia and reaches a depth of over 7,000 meters. The Mariana Trench is the deepest point in the world but it is located in the Pacific Ocean, not the Indian Ocean. The Bougainville Trench and Aleutian Trench are also located in the Pacific Ocean, so they are not the correct answers for the deepest point in the Indian Ocean.
2.
The strait that separates the Andaman Sea (Indian Ocean) and the South China Sea (Pacific Ocean) is
Correct Answer
B. Strait of Malacca
Explanation
The correct answer is the Strait of Malacca. The Strait of Malacca is a narrow stretch of water located between the Andaman Sea and the South China Sea. It is one of the most important shipping lanes in the world, connecting the Indian Ocean to the Pacific Ocean. The strait is strategically significant as it is a major trade route for oil shipments and other goods between Asia, Europe, and the Middle East.
3.
The average depth of the Indian Ocean is
Correct Answer
C. approx 12,000 feet
Explanation
The correct answer is approximately 12,000 feet. This is the average depth of the Indian Ocean.
4.
The Indian Ocean is the warmest in the world.
Correct Answer
A. True
Explanation
The Indian Ocean is the warmest in the world because it is located in the tropical region and receives direct sunlight throughout the year. The ocean's warm temperature is also influenced by the Indian Ocean Dipole, a climate phenomenon that causes warm waters to accumulate in the region. Additionally, the Indian Ocean is surrounded by landmasses that limit the exchange of cooler waters from other oceans, further contributing to its warm temperature.
5.
The smallest island in the Indian Ocean is
Correct Answer
B. Bitra Island
Explanation
Bitra Island is the correct answer because it is the smallest island in the Indian Ocean. The other options, Diego Garcia Island, Tromelin Island, and Pagai-Utara Island, are not the smallest islands in the Indian Ocean.
6.
The largest island in the Indian Ocean is
Correct Answer
B. Madagascar
Explanation
Madagascar is the correct answer because it is the largest island in the Indian Ocean. With an area of approximately 587,041 square kilometers, it surpasses the other options given. Madagascar is known for its unique biodiversity, with many endemic species found only on the island. It is located off the eastern coast of Africa and is a popular tourist destination for its stunning landscapes and diverse wildlife.
7.
Which country does not share its boundary with the Indian ocean?
Correct Answer
D. Libya
Explanation
Libya is the correct answer because it is the only country listed that does not share its boundary with the Indian Ocean. India, Pakistan, and Thailand all have coastlines along the Indian Ocean, while Libya is located in North Africa and does not have any coastline along the Indian Ocean.
8.
Diego Garcia is an overseas territory of
Correct Answer
B. United Kingdom
Explanation
Diego Garcia is an overseas territory of the United Kingdom. This means that although it is located far from the UK, Diego Garcia is under the sovereignty and control of the UK government. The UK has maintained a military base on the island since the 1970s and it is used for various strategic purposes. The UK's control over Diego Garcia has been a subject of controversy and legal disputes, but it remains under British jurisdiction.
9.
Which ridge is the largest in the Indian Ocean?
Correct Answer
C. Ninetyeast Ridge
Explanation
The Ninetyeast Ridge is the largest ridge in the Indian Ocean. It extends from the Bay of Bengal to the southern Indian Ocean and is approximately 5,000 kilometers long. The ridge is formed by volcanic activity and is characterized by a series of underwater mountains and valleys. It plays a significant role in the tectonic activity of the region and is an important geological feature in the Indian Ocean.
10.
Countries that are separated by the Mozambique channel are
Correct Answer
C. Madagascar and Mozambique
Explanation
The countries that are separated by the Mozambique channel are Madagascar and Mozambique. The Mozambique Channel is a body of water that separates the island of Madagascar from the mainland of Mozambique. It is located in the Indian Ocean and is an important shipping route for trade between Africa and Asia.