World & Physical Geography MCQs

Notes:
The iron makes up about 34.6% of Earth’s mass and 5.2% of Earth’s crust. The other metals there are aluminium, silicon etc. The abundant metal Iron is truly one of Earth’s essential building blocks.

Notes:
Chomolungma is one name of Mount Everest, and its located in Nepal, as we all know.

Notes:
A barchan is indeed a type of dune. Characterized by its distinctive crescent shape and known to exist in arid desert environments, it faces the wind in a convex orientation. Barchans are not static; rather, they are able to shift and transform due to the predominant wind direction. This wind action contributes to their unique form and continual movement, enlightening us about the dynamic nature of desert topography.

Notes:
Approximately 97% of the Earth’s water is in the form of oceans. The remaining 3% is found in the form of fresh water, which is distributed among the Earth’s lakes, rivers, and underground aquifers.

Notes:
The McMurdo Dry Valleys, renowned for their hypersaline lakes like Lake Vanda with a striking salinity of over 35%, which is 10 times more than typical ocean water, are located in Antarctica. Despite this, the most saline water body globally is not found here but at the Gaet’ale Pond. This site, situated in the Danakil Depression in Afar, Ethiopia, holds an even higher concentration of salt, accurately representing the diversity of extreme environments on Earth.

Notes:
The Prime Meridian passes through the Royal Observatory in Greenwich, England, and is the line of 0 degree longitude from which other longitudes are calculated. It does not have a latitude of 180 degrees nor is it known as the International Date Line – that is the line of 180 degrees longitude. Thus, only the first statement is correct.

Notes:
On New Moon or Full moon, the tides will have higher amplitude. In the given dates, on January 3, Earth is at perihelion. This means that Earth on January 2 0r 3 is at closest distance from Sun. So, the tide would be highest in the year on Perihelion-New Moon. This spring tide would be the highest in the entire year.

Notes:
• The Florida Current is a thermal ocean current that flows from the Straits of Florida around the Florida Peninsula and along the southeastern coast of the United States before joining the Gulf Stream Current near Cape Hatteras. Its contributing currents are the Loop Current and the Antilles Current.
• The Benguela Current is a cold, wide current that flows northwards along the west coast of southern Africa. It is an Eastern Boundary Current and forms the eastern flank of the South Atlantic Gyre The ocean current “begins” roughly where the eastward-flowing South Atlantic Current swings northward at the Agulhas.
• The Peruvian Current, also called the Humboldt Current, is a cold, low-salinity ocean current that flows north along the western coast of South America. It is an eastern boundary current flowing in the direction of the equator, and extends 500–1,000 km (310–620 mi) offshore.
• The Kuroshio a warm northeasterly ocean current off the coast of JAPAN. This current is also called the gulf stream of the Pacific or Japan Current. Kuroshio means “the black stream” in Japanese, named after the deep ultramarine color of the high salinity water, which is found flowing north of the current’s axis.

Notes:
Arakan yoma is the extension of the himalayas located in Myanmar. The Arakan Mountains are also known as the Rakhine Mountains. These are a mountain range in western Myanmar, between the coast of Rakhine State and the Central Myanmar Basin, in which the Irrawaddy River flows.

Notes:
Palk Strait is between Bay of Bengal and Gulf of Manner. It is bounded on the south by Pamban Island Adam’s Bridge, the Gulf of Mannar, and Mannar Island. The southwestern portion of the strait is also called Palk Bay.