Hydrosphere MCQ Question and Answer | Geography MCQ Question

"The deepest point in the ocean is generally believed to be in the Marianas Trench in the Western Pacific Ocean at approximately 36,160 feet (11,021 m), according to the Rand McNally Atlas (1977)."

These margins coincide with the plate margins best explains the reason for the eastern and western boundaries of the Pacific Ocean experiencing frequent earthquake.

The oceanic current named as 'Kuroshio - Kurile and Alaskan' are located in North Pacific Ocean.

Phnom-Penh cities is associated with the river Mekong. The river flows through Laos, Cambodia, and Vietnam before draining into the South China Sea south of Ho Chi Minh City (formerly Saigon). Vientiane (Viangchan), the capital of Laos, and Phnom Penh, the capital of Cambodia, both stand on its banks.

The most important navigable river in, Central Europe that provides a link between seven countries-Austria, Belgium, Czech Republic, Hungary, Rome, Russia and Yugoslavia is Danube.

Potomac river is a river in United States of America which drains an area of about 14,700 square miles and empties into Chesapeake Bay. Washington, D.C., is the capital city of the United States, located between Virginia and Maryland on the north bank of the Potomac River.

The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula and Russia, is the smallest among the following water bodies.

Fresh water are not favourable for the growth of coral reefs. Coral require fairly good amount of sunlight to survive. The ideal depths for coral growth are 45 m to 55 m below sea surface, where there is abundant sunlight available. Clear salt water: Clear salt water is suitable for coral growth, while both fresh water and highly saline water are harmful.

The state of Hawaii consists of eight larger islands (seven of which are populated), also called the Main Hawaiian Islands, and 124 small, uninhabited islands, reefs and shoals, the Northwestern Hawaiian Islands, where the majority of the Hawaiian coral reef, about 70% of it, is located.

The Amazon basin is the largest drainage basin in the world, with an area of approximately 7,050,000 square kilometres (2,720,000 sq mi).