CBSE Questions for Class 8 General Knowledge General Physical Geography Quiz 6 - MCQExams.com

What percentage of world's freshwater is stored as glacial ice?
  • 50%
  • 10%
  • 70%
  • 30%
Consider the following statements:
(1) 99% of the water vapour in the atmosphere is concentrated in the lowest 16 km.
(2) 90% of the water vapour in the atmosphere is concentrated in the lowest 6 km.
Which of the statements given above is/are correct?
  • Only 1
  • Only 2
  • 1 and 2
  • None of these
Ozone layer in the outer atmosphere helps us in ______________.
  • reflecting radio waves and makes radio communication possible.
  • regulating the temperature of atmosphere.
  • absorbing cosmic ray particles.
  • absorbing UV radiations.
Arrange the following layers of atmosphere vertically from the surface of the Earth.
(1) Mesophere  (2) Troposphere
(3) Stratosphere (4) Thermosphere
  • 1, 2, 3, 4
  • 2, 1, 3, 4
  • 2, 3, 1, 4
  • 3, 4, 2, 1
The weakest zone of Asthenosphere lies from the Earth's surface at roughly a depth of ______.
  • 100 km
  • 200 km
  • 300 km
  • 400 km
Which one of the following statements about the atmosphere is correct?
  • The atmosphere has definite upper limits but gradually thins until it becomes imperceptible.
  • The atmosphere has no definite upper limits but gradually thins until it becomes imperceptible.
  • The atmosphere has definite upper limits but gradually thickens until it becomes imperceptible.
  • The atmosphere has no definite upper limits but gradually thickens until it becomes imperceptible.
Most of the phenomena related to weather take place in __________.
  • stratosphere
  • ionosphere
  • mesophere
  • troposphere
Choose the correct statements regarding igneous rocks:
(1) In terms of origin, there are two main classes of rocks.
(2) Volcanic rocks have big crystals.
(3) Basalt is a common plutonic rock.
(4) Granite, Diorite, Gabbro are plutonic rocks.
Select the correct answer using the codes given below.
  • 1 and 4
  • 1 and 3
  • 1 and 2
  • All of these
Which one among the following is not an igneous rocks?
  • Granite
  • Basalt
  • Gabbro
  • Gneiss
What is the name given to an almost circular coral reef inside which there is a lagoon?
  • Fringing reef
  • Barrier reef
  • Atoll
  • Isthmus
Which of the following elements are found in highest and lowest quantities respectively in the crust of the Earth?
  • Oxygen and silicon
  • Calcium and sodium
  • Sodium and magnesium
  • Oxygen and magnesium
Which one of the following zones of the atmosphere is rich in ozone gas?
  • Mesosphere
  • Troposphere
  • Stratosphere
  • Ionosphere
In Western plateau region, the vast areas of broken rock and stone, where winds have removed all the loose, light material, are known as the _______.
  • Inselbergs
  • Gibber plains
  • Ayers rocks
  • Regs
Which among the following gases has the most volume by percentage in the atmosphere?
  • Carbon dioxide
  • Argon
  • Neon
  • Helium
The intensity of insolation depends on ___________.
  • altitude
  • nature of terrain
  • wind
  • latitude
The correct proportion of gases in the atmosphere in descending order is _____________.
  • Nitrogen, Carbon dioxide and Oxygen
  • Nitrogen, Oxygen and Carbon dioxide
  • Carbondioxide, Nitrogen and Oxygen
  • Carbondioxide, Oxygen and Nitrogen
Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?
  • Troposphere
  • Stratosphere
  • Mesophere
  • Ionosphere
Consider the following statements:
(1) Weathered rock with change of volume is called saprolite.
(2) The process of landscape formation by deep weathering followed by stripping of the saprolite is called etching.
Which of the statements given above is/are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Which of the following statements relating to earthquakes is/are correct?
(1) The point of origin of earthquake is called epicentre.
(2) The lines joining the places which were affected earthquake at the same point of time are called homoseismal lines.
Select the correct answer using the codes given below.
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Granite and Basalt are the examples of which of the following?
  • Sedimentary rocks
  • Metamorphic rocks
  • Igneous rocks
  • Calcareous rocks
Rocks resulting from the crystallisation of magma are ___________.
  • Igneous
  • Metamorphic
  • Sedimentary
  • Migmatities
Earth has concentric layers of heterogeneous composition. Choose correct statements regarding its structure.
(1) It comprises three distinct layers.
(2) Barysphere is the inner-most layer.
(3) Mesosphere (Mantle) is made of primarily mineral olivine.
(4) Sima is part of continental crust.
Select the correct answer using the codes given below.
  • 1, 2 and 3
  • 2 and 4
  • 1 and 4
  • None of these
Match List I with List II and select the correct answer using the codes given below the lists:
List I
(City)		List II
(Earthquake Zone)
(A) Kolkata(1) Zone V
(B) Guwahati(2) Zone IV
(C) Delhi(3) Zone III
(D) Chennai(4) Zone II
  • A-3; B-2; C-1; D-4
  • A-3; B-1; C-2; D-4
  • A-4; B-1; C-2; D-3
  • A-4; B-2; C-1; D-3
Which of the following is the correct order of elements of earth's crust in decreasing order of their percentage?
  • Aluminium, iron, silicon, oxygen
  • Oxygen, aluminium, iron, silicon
  • Iron, aluminium, silicon, oxygen
  • Oxygen, silicon, aluminium, iron
Consider the following statements:
(1) Acid igneous rocks such as granite are less dense and are light in colour than basic rocks.
(2) Granite is a plutonic rock.
(3) Granite is a common volcanic or extrusive rock and forms lava flows, lava sheets and lava plateaux.
(4) Granite are the basic igneous rocks.
Which of the statements given above is/are correct?
  • Only 1
  • 1 and 4
  • Only 2
  • Only 3
Match list I with list II and select the correct answer using the code given below the lists.
List I
(Geological Time Scale)		List II
(Life-form)
(A) Pleistocene(1) Mammals
(B) Paleocene(2) Human genus
(C) Permian(3) Invertebrates
(D) Cambrian(4) Frogs
  • A-2; B-1; C-4; D-3
  • A-2; B-4; C-1; D-3
  • A-3; B-4; C-1; D-2
  • A-3; B-1; C-4; D-2
Among the following sedimentary rocks, which is of organic origin?
  • Gypsum
  • Limestone
  • Nitre
  • Rock Salt
Which of the following statements characterise convectional rainfall?
It occurs daily in the afternoon in the Equatorial regions.
It is of very short duration.
It occurs through Cumulonimbus clouds.
Select the correct answer using the codes given below.
  • 1, 2 and 3
  • 1 and 3
  • 2 and 3
  • Only 1
Regarding Abrasio, a weathering process, choose the correct statement(s):
(1) It is a wearing down process related only to fluvial erosion.
(2) Friction is the prime force responsible for abrasion.
(3) Attrition is same as abrasion in all respects.
  • Only 1
  • Only 2
  • Only 3
  • 2 and 3
Which one of the following statements is true about Horse latitude?
  • It is a region of strong wind currents.
  • It is a dynamically induced sub-tropical high pressure.
  • It is closest point to the Sun, therefore, the air relatively is more hot due to which, the air become less denser and form a low pressure zone.
  • None of the above.
Consider the following surface winds:
Doldrums 
Trade winds
Westerlies 
Polar winds 
Which one among the following is the idealised global pattern of these winds from the Equator to the pole?
  • 1, 2, 3, 4
  • 1, 3, 2, 4
  • 2, 1, 4, 3
  • 3, 1, 2, 4
Low pressure across Peruvian coast causes ____________.
  • Low rainfall in India
  • Low rainfall in Australia
  • High rainfall in Japan
  • Both 'a' and b'
Surface waves in earthquake are considered more disastrous. Pick correct statements regarding it.
(1) S-waves are shear waves.
(2) S-waves can travel only through solids.
(3) S-waves are slower than P-waves.
(4) Speed is typically around 60% of that of P-waves.
  • Only 1
  • 2 and 3
  • 1, 2 and 3
  • All of the above
Which one of the following instruments is used for measuring the humidity of the air?
  • Wind vane
  • Aneroid barometer
  • Wet and dry bulb thermometer
  • Maximum and minimum thermometer
Which one of the following is the source region for the formation of airmasses?
  • The Equatorial forest
  • The Himalayas
  • The Siberian Plain
  • The Deccan Plateau
The air that descends on a rain shadow desert is _________.
  • Warm and moist
  • Cold and dry
  • Warm and dry
  • Cold and moist
Which one of the following layers of the atmosphere is responsible for the deflection of radio waves?
  • Troposphere
  • Stratosphere
  • Mesosphere
  • Ionosphere
In temperate region frontal activity plays active role in deciding weather. Choose correct statement regarding it.
Process associated with creation of new fronts or regeneration of decaying fronts is called frontogenesis.
Destruction of fronts is called frontolysis.
  • Only 1
  • Only 2
  • 1 and 2
  • None of these
Land forms that we see today is the result of millions of years of endogenetic and exogenetic forces working together. With respect to geologic time scale, choose the correct statements.
(1) There have been 9 or more orogenic phases.
(2) Alpine is the most recent geologic period of orogeny.
(3) Caledonian and Hercynian are also a geologic time period of orogeny.
(4) Urals, Pennines, Applachians belong to Hercynian period.
(5) Alps, Himalayas, Andes and Rockies belong to Alpine period.
  • 1, 3 and 5
  • 1, 2 and 4
  • 1, 2, 3 and 4
  • All of these
Regarding Walker cycle. Choose the correct statement.
It is a convective cycle.
It is driven by pressure gradient in East - West direction.
It was discovered by G.T Walker.
  • Only 1
  • 2 and 3
  • 1 and 3
  • All of the above
EL Nino is known to affect world climate for a year or two. Regarding its effect choose correct statement.
Drought condition in Australia.
Heavy precipitation along coast of Peru.
Devastating effect on marine life.
Harmful for corals.
  • 1 and 4
  • 2 and 4
  • 1, 2 and 3
  • All of these
Nights are cooler in the deserts than in the plains because ____________.
  • sand radiates heat more quickly than the earth
  • the sky remains clear most of the time
  • sand absorbs heat more quickly than the earth
  • None of the above
Most of the phenomena related to weather take place in _________.
  • stratosphere
  • ionosphere
  • mesosphere
  • troposphere
The horizontal wind circulation near the Earth's surface is due to the:
Pressure gradient
Frictional force 
Coriolis force
Select the correct answer using the codes given below.
  • Only 1
  • 2 and 3
  • 1 and 3
  • 1, 2 and 3
Below given are the different kinds of humidity. On which one, the possibility of precipitation depends the most?
  • Specific humidity
  • Absolute humidity
  • Relative humidity
  • Humidity capacity
Processes that lead to different topographic features are:
(1) tectonism
(2) chemical dissolution
(3) periglacial processes
(4) mass wasting.
  • 3 and 4
  • 1, 3 and 4
  • 2 and 3
  • All of these
Geomorphically, what all processes lead to sculpting a landscape?
(1) Weathering 
(2) Erosion
(3) Deposition.
  • Only 1
  • Only 2
  • 1 and 2
  • All of these
Which one of the following islands is of volcanic origin?
  • Reunion island
  • Andaman and Nicobar islands
  • Lakshadweep islands
  • Maldives
Which region of the Earth's surface is called doldrums?
  • Equatorial low pressure belt
  • Sub-tropical high pressure belt
  • Between 10° to 23.5° North and South latitudes
  • Sub-polar low pressure belt
Match the following
List I
(Types of mountains)		List II
(Features)
(A) Fold mountain(1) Mountain of elevation
(B) Block mountain(2) faulting
(C) Volcanic mountain(3) Mountain of accumulation
(D) Residual mountain(4) Deccan plateau
  • A-1; B-2; C-3; D-4
  • A-1; B-3; C-2; D-4
  • A-3; B-2; C-1; D-4
  • A-4; B-3; C-1; D-4
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