World & Physical Geography MCQs
World Geography Multiple Choice Questions (MCQs) Quiz for State and UPSC Civil Services Examinations. Objective Questions on Physical Geography and World Geography for competitive examinations.
1. Pebble transport by rivers, sand drift over desert surfaces, soil blowing over fields are examples of which of the following phenomena?
[A] Deposition
[B] Saltation
[C] Attrition
[D] Weathering
Show Answer
Correct Answer: B [Saltation]
Notes:
Pebble transport by rivers, sand drift over desert surfaces, soil blowing over fields are examples of saltation. Saltation is a type of particle transport by fluids such as wind or water.
2. Which of the following river is known as padma when enters Bangladesh?
[A] Brahmputra
[B] Ganga
[C] Teesta
[D] Mahanadi River
Show Answer
Correct Answer: B [Ganga]
Notes:
The Padma River is a major river in Bangladesh. It is the main distributary of the Ganges River, which flows into the Bay of Bengal. The Padma is one of the largest rivers in Bangladesh and is an important source of water, transportation, and irrigation for the country.
3. In which type of rocks, Fossil Fuel can be found?
[A] Igneous
[B] Sedimenatry
[C] Metamorphic
[D] None of the above
Show Answer
Correct Answer: B [Sedimenatry]
Notes:
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of small particles and subsequent cementation of mineral or organic particles. The fossils can be found in these.
4. In context with the international borders, Zero Point refers to an area on the border of which of the following neighbors?
[A] China North Korea
[B] Iran Pakistan
[C] Iran Iraq
[D] Pakistan Afghanistan
Show Answer
Correct Answer: B [Iran Pakistan]
Notes:
The Iran Pakistan International Border is known as Zero Point. It is 959 km in length.
5. Which among the following country owns the firsty permanent base in the area at Antarctica defined by the Antarctic Treaty System?
[A] USA
[B] Canada
[C] USSR
[D] Argentina
Show Answer
Correct Answer: D [Argentina]
Notes:
Argentina is the first country to have permanent base on Antarctica. It is defined by Antarctica Treaty system. It Dakshin Gangotri is the first Indian base in Antarctica.
6. Which among the following country is the world’s leading producer of synthetic industrial diamond?
[A] United states
[B] Congo
[C] China
[D] South Africa
Show Answer
Correct Answer: C [China]
Notes:
China is the world’s leading producer of synthetic industrial diamonds. Industrial diamonds can be used in cutting, drilling, grinding, and polishing.
7. In many countries with cold climates, the municipalities often sprinkle salt on icy roads in winter.
Which among the following is the correct reason for this?
[A] The Salt inhibits the formation of Ice Crystals
[B] The Salt lowers the Freezing Point of water
[C] The Salt raises the freezing Point of water
[D] The salt provides necessary friction to the tires of the vehicles
Show Answer
Correct Answer: B [The Salt lowers the Freezing Point of water ]
Notes:
The correct reason for sprinkling salt on icy roads is that “the salt lowers the freezing point of water.” This process is known as freezing point depression. When salt (sodium chloride) is added to ice, it disrupts the formation of ice crystals, causing the ice to melt at lower temperatures. This is why salt is commonly used in winter road maintenance. it helps to keep roads safer by preventing ice formation. In fact, salt can lower the freezing point of water to about -9.5°C (15°F) when used in sufficient quantities.
8. A Rift Valley is:
[A] a valley which is cut across by a deeper valley or a cliff
[B] an underwater mountain system formed by plate tectonics
[C] a valley with steep fault-scarps and block mountains on both sides
[D] an active oblique rift system located on the abyssal plains
Show Answer
Correct Answer: C [ a valley with steep fault-scarps and block mountains on both sides]
Notes:
A rift valley is a valley with steep fault scarps and block mountains on both sides. Rift valleys are formed when tension causes the central portion to be let down between two adjacent fault blocks. The East African Rift Valley system is an example of a rift valley.
Block mountains are formed when large areas of the earth break and subside vertically. The uplifted blocks are called horsts and the lowered blocks are called graben. The Sierra Nevada mountain range in California is an example of fault block mountains.
Block mountains are formed when two tectonic plates move away from each other, causing cracks on the surface of the Earth. This forces a slab of land to break off and is forced upwards.
9. ‘Blackholes’ refers to which of the following situations?
[A] Holes occurring in heavenly bodies
[B] Bright spots on the sun
[C] Collapsing object of high density
[D] Collapsing object of low density
Show Answer
Correct Answer: C [Collapsing object of high density]
Notes:
A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.
10. Acid precipitation is now regarded as a serious problem in some European and Asian countries. Which of the following was its major cause or source?
[A] discharge of acidic effluents onto neutral or slightly alkaline land where the acidic components precipitate
[B] emissions of sulphur oxides and nitrogen oxides from thermal power plants and burning of fossil fuels; these oxides dissolve in atmospheric water vapour and fall back on earth as acid rain
[C] natural carbon dioxide released during respiration of living organisms dissolves in water, forming carbonic acid which is the chief contributor to acidity in rain water
[D] chloro-fluoro-carbons readily react with various chemicals near the earth’s surface, producing acidic intermediates which cause acid precipitation
Show Answer
Correct Answer: B [emissions of sulphur oxides and nitrogen oxides from thermal power plants and burning of fossil fuels; these oxides dissolve in atmospheric water vapour and fall back on earth as acid rain]
Notes:
The main chemicals in air pollution that create acid rain are sulfur dioxide (SO2) and nitrogen (NOx). Acid rain usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. this mixture forms a mild solution of sulfuric acid and nitric acid.
