World & Physical Geography MCQs

Notes:
Abrasion is the process of scraping or wearing something away. The forces causing two rock surfaces to come together , causing mechanical wearing or grinding is nothing but abrasion.

Notes:
Sir Thomas Stamford Bingley Raffles was a British statesman, Lieutenant-Governor of the Dutch East Indies and Lieutenant-Governor of Bencoolen. He is known for his founding of modern Singapore and the Straits Settlements.

Notes:
Earth’s magnetosphere is a region of space surrounding our planet where the behavior of charged particles is largely influenced by Earth’s magnetic field. It extends far beyond the ionosphere, which is a region of the Earth’s atmosphere located from about 48 kilometers (30 miles) to 965 kilometers (600 miles) above the Earth’s surface. The magnetosphere extends into space and interacts with the solar wind, a stream of charged particles emitted by the Sun, well beyond the boundaries of the ionosphere. The boundary of the magnetosphere, known as the magnetopause, can vary in distance from Earth depending on the strength and direction of the solar wind, but it typically extends tens of thousands of kilometers into space.

Notes:
Mongolia is the least densely populated country in Asia, with only two people per square kilometer. The average population density in Asia in 2020 was 1,018 people per square kilometer. Mongolia is also the world’s most sparsely populated country. The country has a cold climate due to its high altitudes and latitudes. Large parts of Mongolia are covered by mountains and deserts, leaving little arable land. As of 2016, Mongolia’s population was estimated to be 3,068,243.
The least densely populated country in Southeast Asia is Laos, with 32 people per square kilometer. The most densely populated country in Southeast Asia is Singapore, with 7,919 people per square kilometer.

Notes:
The ozone layer lies in the region of Earth’s stratosphere. It absorbs most of the Sun’s ultraviolet radiation (97 to 99 % of the Sun’s medium-frequency). The layer contains less than 10 parts per million of ozone. Chlorofluorocarbon is mainly responsible for the depletion of ozone layer.

Notes:
Warm wet winters are hallmark of Mediterranean climate. During summer, regions of Mediterranean climate are dominated by subtropical high pressure cells, with dry sinking air capping a surface marine layer of varying humidity and making rainfall impossible or unlikely except for the occasional thunderstorm, while during winter the polar jet stream and associated periodic storms reach into the lower latitudes of the Mediterranean zones, bringing rain, with snow at higher elevations. As a result, areas with this climate receive almost all of their precipitation during their winter season, and may go anywhere from 4 to 6 months during the summer without having any significant precipitation. (Wikipedia)

Notes:
The June solstice is the Summer Solstice in the Northern Hemisphere and the Winter Solstice the Southern Hemisphere. Similarly, December Solstice or Summer solstice in Southern Hemisphere is on 21 December. Australia will experience the longest day on 22 December and shortest day on 21 June.

Notes:
Cirrostratus is the only clouds which is responsible for the formation of haloes. A halo is an optical phenomena produced by light interacting with ice crystals suspended in the atmosphere. It leads to formation of colored or white rings or arcs and spots in the sky.

Notes:
Berber, self-name Amazigh, are descendants of the pre-Arab inhabitants of North Africa. The Berbers live in scattered communities across Morocco, Algeria, Tunisia, Libya, Egypt, Mali, Niger, and Mauritania.

Notes:
The Arctic Archipelago is also known as the Canadian Arctic Archipelago and it comprises all the islands to the north of The Canadian continental mainland excluding Greenland.