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. These questions are part of GKToday’s 35000+ MCQs Bank Course in GKToday Android App
11. Which of the following shapes is similar to the shape of the Himalayas?
[A] An arc
[B] A curvilinear straight line
[C] A straight line
[D] A right angle
Show Answer
Correct Answer: A [An arc]
Notes:
The shape of the Himalayas is like an arc. The upper parts of the Himalayas are covered with perpetual snow. The main crust of the Himalayan ranges rises above the snow line which varies between 4,500 to 6,000 meters in the west and 4,000 to 5,800 meters in the east.
12. Which of the following is the limit beyond which stars suffer internal collapse?
[A] Chandrashekhar limit
[B] Eddington limit
[C] Hoyle limit
[D] Fowler limit
Show Answer
Correct Answer: A [Chandrashekhar limit]
Notes:
The Chandrasekhar limit is the maximum mass of a stable white dwarf star. The currently accepted value of the Chandrasekhar limit is about 1.4 M. White dwarfs resist gravitational collapse primarily through electron degeneracy pressure.
13. Which of the following waters contains soluble salts of calcium and magnesium?
[A] Heavy water
[B] Soft water
[C] Hard water
[D] Mineral water
Show Answer
Correct Answer: C [Hard water]
Notes:
Hard water is the water that contains salts of calcium and magnesium principally as bicarbonates, chlorides, and sulfates.
14. Neap tides are produced in the first and third quarters of the Moon. Which of the following is the situation for Neap tides to occur?
[A] The Moon and the Sun are in conjunction with the other planets
[B] The Moon and the Sun are in opposition with each other
[C] The attractions of the Sun and the Moon are at right angles to each other
[D] The Moon and the Sun are in quadrant position to each other
Show Answer
Correct Answer: C [The attractions of the Sun and the Moon are at right angles to each other]
Notes:
A tide in which the difference between high and low tide is the least. Neap tides occur twice a month when the Sun and Moon are at right angles to the Earth. When this is the case, their total gravitational pull on the Earth’s water is weakened because it comes from two different directions. Compare spring tide.
15. Which is the largest river from Africa that flows into the Indian Ocean?
[A] Zambezi River
[B] Congo River
[C] Niger River
[D] Limpopo River
Show Answer
Correct Answer: A [Zambezi River]
Notes:
The Zambezi River is the largest river from Africa that flows into the Indian Ocean. It is also the fourth longest river in Africa and the longest east flowing river there. Victoria Falls is a waterfall on the Zambezi River.
16. Which among the following is not a disc shaped Galaxy?
[A] Elliptical Galaxy
[B] Spiral galaxy
[C] Barred spiral galaxy
[D] Lenticular Galaxy
Show Answer
Correct Answer: A [Elliptical Galaxy ]
Notes:
Disc shaped galaxy has a large bulge in the centre with spiral arms travelling around. Elliptical Galaxy is not disc shaped.
17. The Great Red Spot on Jupiter is a __:
[A] High Pressure region that rotates clockwise
[B] Low Pressure region that rotates clockwise
[C] High Pressure Region that rotates anti-clockwise
[D] Low Pressure region that rotates ani-clockwise
Show Answer
Correct Answer: C [High Pressure Region that rotates anti-clockwise]
Notes:
The Great Red Spot is a persistent high-pressure region in the atmosphere of Jupiter, producing an anticyclonic storm that is the largest in the Solar System. Located 22 degrees south of Jupiter’s equator, it produces wind-speeds up to 432 km/h. Jupiter’s Great Red Spot rotates counterclockwise, with a period of about six Earth days. Its diameter was around 16,350 km in 2017.
18. Which Era is known as the “Age of Reptiles”?
[A] Cenozoic
[B] Paleozoic
[C] Mesozoic
[D] Mesoproterozoic
Show Answer
Correct Answer: C [Mesozoic]
Notes:
The Mesozoic Era began 251 million years ago. Surviving reptiles and amphibians evolved into many other species (like dinosaurs), hence the “Age of Reptiles”.
19. Which is the thinnest layer among all the layers of the Earth?
[A] Crust
[B] Mantle
[C] Inner core
[D] Outer core
Show Answer
Correct Answer: A [Crust]
Notes:
The crust is the outermost layer of the Earth. It is 5-100 kms thick. It is the thinnest of all layers of the Earth.
20. Which is the most abundant igneous rock in the Continental crust?
[A] Basalt
[B] Granite
[C] Gabbro
[D] Rhyolite
Show Answer
Correct Answer: B [Granite]
Notes:
Of all the igneous rocks, 16 % is granite. The continental crust is dominated by Granite followed by Quartzite.
