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.
21. Which among the following statement is not correct about Rapids?
[A] They are sections of a river where the river bed has a relatively steep gradient
[B] River rafting sports are carried out where many rapids are present in the course.
[C] They cause a decrease in the water velocity and turbulence
[D] Rapids cause water aeration of the stream or river resulting in better water quality.
Show Answer
Correct Answer: C [They cause a decrease in the water velocity and turbulence]
Notes:
rapids are sections of a river bed having relatively steep gradient. They cause an increase in the velocity and turbulence of the water. They cause water aeration of the stream thereby turning it in better quality. Rapids are famous for river rafting sports.
22. Which among the following statements is not correct about waterfall?
[A] It is an area where water flows over a vertical drop or a series of steep drops in the course of a stream or river.
[B] They are commonly formed in the lower stage of the river
[C] They can have a wide range of widths and depths.
[D] Angel Falls in Venezuela is the world’s tallest above-water waterfall.
Show Answer
Correct Answer: B [They are commonly formed in the lower stage of the river]
Notes:
The area where the water flows over a vertical drop or a series of steep slopes or drops in the course of a stream or a river is called a waterfall. They are commonly formed in the upper stage of the river. They have a wide range of width and depth. Angel Falls in Venezuela is the world’s tallest above-water waterfall (979 metres).
23. What is a large landform that rises fairly steeply above the surrounding land over a limited area called?
[A] Mountain
[B] Ridge
[C] Trench
[D] Valley
Show Answer
Correct Answer: A [Mountain]
Notes:
Mountain is a large landform which rises fairly steeply above the surrounding land over a limited area. It is generally steeper than the hill.
24. The coastal city Helsinki is situated in which among the following countries?
[A] Scotland
[B] Germany
[C] Russia
[D] Finland
Show Answer
Correct Answer: D [Finland]
Notes:
The coastal city Helsinki is the capital of Finland. It is the northernmost European capital. It sits on the Gulf of Finland.
25. The world’s highest motorable road passes through which among the following?
[A] Bara Lacha La
[B] Pir – Panjal
[C] Khardung La
[D] Rohtang
Show Answer
Correct Answer: C [Khardung La ]
Notes:
The Khardung La pass near Leh in Ladakh, has an elevation of 5602 metres. The world’s highest motorable road passes through this pass.
26. At which height will the levels of oxygen be almost negligible?
[A] 560 km
[B] 80 km
[C] 120 km
[D] 200 km
Show Answer
Correct Answer: C [120 km]
Notes:
The portion of the gases changes in the higher layers of the atmosphere. Oxygen will be almost negligible at the heights of 120 km. Similarly Carbon Dioxide is found only up to the height of 90 km.
27. The Mesosphere lies up to how many kilometres from the Earth’s surface
[A] 18 km
[B] 50 km
[C] 80 km
[D] 120 km
Show Answer
Correct Answer: C [80 km]
Notes:
The Mesosphere is the layer of the earth’s atmosphere which is an intermediate layer beyond the ozone layer. It lies upto an altitude of 80 km from the earth’s surface. The temperature gradually falls to -100°C at 80 km altitude in this layer. The meteorites burn up in this layer on entering from the space.
28. What is the Zone of Convergence of the trade winds and tropical air masses called?
[A] Westerlies
[B] ITCZ
[C] Easterlies
[D] Jet streams
Show Answer
Correct Answer: B [ITCZ]
Notes:
ITCZ or the Inter Tropical Convergence Zone is the Zone of Convergence of the trade winds and tropical air masses. It is known to shift with the apparent migration of the sun. . It is fluctuating and oscillating line characterized by low pressure, rainfall and cloudiness.
29. Which among the following are the deepest parts of the ocean?
[A] Continental Shelf
[B] Continental Slope
[C] Mid-oceanic Ridges
[D] Oceanic Trenches
Show Answer
Correct Answer: D [Oceanic Trenches]
Notes:
Oceanic Deeps or Trenches are the deepest parts of the oceans. They are comparatively steep-sided and have narrow basins. They are associated with active volcanoes and strong earthquakes.
30. Which among the following statements is/are correct about the symbiotic life of Corals?
- Algae gives carbon dioxide and other substances the coral polyp needs.
- Coral polyp gives off oxygen and other nutrients that the algae needs.
Select the correct code from the options given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: D [Neither 1 & 2]
Notes:
Coral lives a symbiotic life. Inside the sac of each coral polyp lives one-celled algae called zooxanthellae.
Algae gives off oxygen and other nutrients that the coral polyp needs to live and in return the polyp gives the algae carbon dioxide and other substances the algae needs.
