CBSE Questions for Class 8 General Knowledge General Physical Geography Quiz 7 - MCQExams.com

Which one of the following is a low cloud?
  • Cirrocumulus
  • Cirrostratus
  • Altocumulus
  • Nimbostratus
Consider the following statements:
The difference between the moisture holding capacity of air and its actual humidity is called saturation deficit.
The temperature to which air has to be cooled in order to reach saturation is called dew point.
Which of the statements given above is/are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Consider the following statements:
The approach of cyclone is characterized by a rise in barometric reading.
In the cyclones of the Northern hemisphere, the winds circulate in anticlockwise direction.
Which of the statements given above is/are correct? 
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Which one of the following is the pattern of circulation around a low-pressure area in the northern hemisphere?
  • Counter-clockwise and away from the centre
  • Clockwise and away from the centre
  • Counter-clockwise and towards the centre
  • Clockwise and towards the centre
Which one of the following sets of biomes represent the right sequence in terms of increasing water deficiency?
  • Tropical scrub, tropical savanna, desert
  • Tropical savanna, midlatitude grassland, desert
  • Mediterranean woodland, midlatitude grassland, midlatitude deciduous forest
  • Desert, tropical savanna, tropical scrub
What happens when water is condensed into ice?
  • Heat is absorbed
  • Heat is released
  • Quantity of heat remains unchanged
  • None of the above
The thermal equator is found __________.
  • at the equator
  • South of the geographical equator
  • North of the geographical equator
  • both North and South of geographical equator
El Nino associated with the formation of the South-West monsoon of India is ____________.
  • an abnormally warm ocean current
  • a periodic warm airmass
  • a periodic warm wind
  • a periodic low pressure centre
With respect to chemical weathering a denudational process, choose the correct statements.
(1) It may weaken or entirely dissolve certain constituent of rocks.
(2) In granite, which is made up of quartz feldspar and mica, feldspar easily weathers away.
(3) Loosened material, as in example of granite, quartz and mica are eroded.
(4) Weathered material as in case of granite, feldspar forms regolith, basis of soil.
  • 1 and 2
  • 2 and 3
  • 1, 2 and 3
  • All of these
A new type of El Nino called El Nino Modoki appeared in the news. In this context, consider the following statements.
Normal El Nino forms in the Central Pacific Ocean whereas El Nino Modoki forms in Eastern Pacific Ocean.
Normal El Nino results in diminished hurricanes in the Atlantic Ocean but El Nino Modoki results in a greater number of hurricanes with greater frequency.
Which of the statements given above is / are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
If the Earth did not have an atmosphere, temperature extremes between day and night would ________.
  • increase
  • decrease
  • stay the same
  • fluctuate rapidly
Because of which one of the following factors, clouds do not precipitate in deserts?
  • Low pressure
  • Low humidity
  • High wind velocity
  • High temperature
At high altitudes, pressure cooker is preferable for cooking, because the boiling point of water _________.
  • reduces due to higher atmospheric pressure
  • reduces due to lower atmospheric pressure
  • increases due to reduced gravitational force
  • reduces due to increased ozone content in the atmosphere
Denudation involves four processes, which take place simultaneously. On what factors are these processes dependent to sculpt a landform?
(1) Nature of relief  (2) Structure of rocks
(3) Local climate    (4) Interference by man
  • 1 and 2
  • 3 and 4
  • 1, 2 and 3
  • All of the above
With respect to acid lava, choose the correct features of them.
(1) Low density and have high percentage of silica
(2) Highly viscous  
(3) Explosive
(4) Sometimes they form spine or plug.
  • 1 and 3
  • 3 and 4
  • 1, 2 and 3
  • All of these
La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino?
La Nina is characterised by unusually cold ocean temperature in equatorial Indian Ocean, whereas El Nino is characterised by unusually warm ocean temperature in the equatorial Pacific Ocean
El Nino has adverse effect on South- West monsoon in  India, but La Nina has no effect on monsoon climate.
Which of the statements given above is / are correct?    
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
In absorption of insolation, the most significant part is played by _________.
  • carbon dioxide
  • ozone
  • oxygen
  • haze
Match the following:
List I
(Process)		List II
(Feature)
(A) Carbonation(1) Disintegration and decomposition of rocks
(B) Corrasion(2) Removal of loosened material of rock
(C) Attrition(3) Mechanical wear and tear of tool themselves
(D) Hydraulic action(4) Impact of water currents of channel
  • A-1; B-3; C-4; D-2
  • A-1; B-2; C-3; D-4
  • A-1; B-4; C-3; D-2
  • A-1; B-3; C-2; D-4
Surface run-off becomes stream when water flows from certain height down slope under impact of gravity. Which of the following form streams?
(1) Perennial  (2) Intermittent
(3) Ephemeral   (4) Seasonal
  • 1 and 4
  • 1, 2 and 4
  • 1, 3 and 4
  • All of these
Consider the following statements:
1) Eluviation - A horizon
2) Illuviation - B horizon
Which of the statement(s) given above is / are true?
  • Only 1
  • Only 2
  • Both 1 and 2
  • None of these
Fluvial erosion is one of the most important exogenetic processes. On what factors does it depend?
(1) Channel gradient  (2) Volume of water
(3) Velocity of flow   (4) Water discharge   (5) Sediment load
  • 1, 2 and 3
  • 2, 4 and 5
  • 1, 3 and 5
  • All of these
Physical weathering is another important form of denudational process. Choose correct statements regarding it:
(1) It can be broadly divided into 4 types.
(2) Exfoliation occurs only in dry areas.
(3) Frost is the most potent force of weathering in temperate region.
(4) Biotic weathering can take place only if it's preceded by chemical weathering.
  • 1, 3 and 4
  • 1 and 3
  • 1, 2 and 3
  • Only 1
Ground water is an agent of erosion, transportation and deposition. Regarding ground water, pick correct statements.
(1) Water filling up joints and pores-spaces is ground water.
(2) Groundwater plays an important role in weathering and mass movement.
(3) It re-enters hydrological cycle as springs.
(4) Amount of water available as ground water depends upon climate, season and nature of rocks.
  • 1 and 4
  • 2 and 3
  • 3 and 4
  • All of these
Regarding mass movement, choose the correct statements.
(1) Movement of weathered material down slope.
(2) Gravitational force of Earth is the reason for mass movement with multiple triggers.
(3) It is dependent upon gradient of slope, weight of weathered debris and presence of any trigger (lubricating agent or vibration).
(4) There are 3 types of mass movement.
  • 1 and 4
  • 1, 2 and 3
  • 1 and 3
  • All of the above
Salinisation occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land?
  • It greatly increases the crop production
  • It makes some soils impermeable
  • It raises the water table
  • It fills the air spaces in the soil with water
The climate in the North-Eastern part of Eastern Europe is generally ________.
  • warmer than the climate of Western Europe
  • colder than the climate of the land to the North
  • wetter than the climate of the lands bordering the Mediterranean Sea
  • cooler and drier than the climate of most countries on the Balkan Peninsula
Which one of the following conditions is most favourable for precipitation?
  • Low moisture
  • High moisture content
  • Cooling air
  • Descending air
Minor climatic variations in the environment lead to ______.
  • modifications in plant bodies
  • exclusion of most of the existing plant species
  • better development of the plant bodies
  • no change in the character of the vegetation
Meandering is defined as bending of longitudinal course of rivers. Choose the correct statement(s) regarding this.
(1) Convex side of valley wall is called slip-off slope a site of deposition.
(2) All streams meander in all types of terrains.
(3) Degree of deviation of observed path from expected path is known as sinuosity index.
(4) Incised meanders unlike simple meanders are always dug out in bed rocks.
  • 1 and 2
  • Only 3
  • 2 and 4
  • All of the above
Regarding depositional land forms by river, choose the correct statement(s).
(1) Alluvial fanes and all alluvial cones are formed at foothills.
(2) Both differ from each other only in terms of gradient.
(3) Ridge of low height built by deposition of sediments by spill of stream on its either bank is called natural leave.
(4) Whether small or large, almost every river forms delta.
  • Only 3
  • 3 and 4
  • 1, 2 and 3
  • All of these
Which of the following processes are a method to transport river load?
(1) Traction
(2) Suspension
(3) Solution
(4) Siltation
  • 1, 2 and 3
  • 2 and 3
  • 1 and 4
  • All of these
Plants growing in areas of high temperature are called ______.
  • microtherms
  • megatherms
  • mesotherms
  • endotherms
Crest and trough form two extreme of sea waves in a vertical plain. Choose correct statements regarding sea waves.
(1) Water does not move forward.
(2) Water particles within a wave move in circular motion.
(3) Sea waves radiate outward from generating area.
(4) Longer wavelength move more rapidly.
  • 1 and 2
  • 3 and 4
  • 1, 2 and 3
  • All of the above
Match the following coastal landforms
List I
(Terms)		List II
(Definition)
(A) Bars(1) Ridge of sand parallel to shorelines
(B) Breakers(2) Toppling of wave crests when they attain enormous height
(C) Plunge line(3) Distance from sea shore where wave breaks
(D) Surf(4) Turbulent forward moving foaming swash
  • A-1; B-2; C-3; D-4
  • A-3; B-2; C-1; D-4
  • A-2; B-1; C-4; D-3
  • A-4; B-3; C-2; D-1
Terraces are step like flat surfaces on either side of the present lowest valley floors. Choose the correct statements regarding this.
(1) Structural terraces differ from river terraces in terms of dominant role played by lithology.
(2) River terraces are generally formed due to dissection of fluvial sediments of flood plains.
(3) Paired terraces are formed due to rapid rate of vertical erosion.
(4) Unpaired terraces are formed due to concomitant vertical erosion and lateral movement of channel.
  • 1 and 3
  • 2 and 4
  • 1 and 4
  • All of these
Sea waves are generated due to friction of water surface caused by blowing wind. Choose the correct statement regarding sea waves.
(1) Undulations of sea water at the place of their origin are called swells.
(2) Height of winds generated depends on wind speed, duration of wind in one direction, length of water surface over which the wind blows.
(3) Wavelength is expressed in terms of unit of meters.
(4) Wave velocity is directly related to wavelength.
  • 1 and 2
  • 2 and 3
  • 1 and 4
  • All of these
Thorns in cacti are ______.
  • modified stems
  • stems
  • modified leaves
  • None of the above
Cloudy nights are warmer than clear nights because ______.
  • of greenhouse effect
  • of depletion of ozone layer
  • of insolation
  • it acts as a hindrance to terrestrial radiation
Stalactites and stalagmites are features of _______.
  • glacial topography
  • volcanic topography
  • karst topography
  • fluvial topography
Which of the following is/are not erosional land forms?
(1) Cliff
(2) Caves
(3) Wave-cut platform
(4) Beaches
  • 1 and 2
  • 1 and 3
  • All of above
  • None of the above
The atmospheric air is held to the Earth by ______.
  • gravity
  • winds
  • clouds
  • rotation of the Earth
Which one of the following combinations of stalactites arid stalagmites occurrences is correct?
  • Stalactites hang as icicles of different diameters and stalagmites hang from the floor of the caves.
  • Stalactites hang as icicles of different diameters and stalagmites rise up from the floor of the caves.
  • Stalactites rise up from the floor of the caves and stalagmites hang as icicles of different diameters.
  • Stalactites hang as icicles of different diameters and stalagmites also hang as icicles of different diameters.
The 'eye' of the cyclone has ______.
  • abnormally high temperature and lowest pressure
  • abnormally low temperature and pressure
  • clear sky and lowest temperature
  • dense cloud cover and low pressure
The term deciduous implies ______.
  • trees shedding leaves during autumn season
  • plants shedding leaves at different times
  • plants shedding leaves during rainy season
  • plants shedding leaves during dry season
Going from poles to the equator, the variety of plants ______.
  • increases
  • decreases
  • remains the same
  • may increase or decrease
Coniferous trees are so named on the basis of the ______.
  • plant's shape
  • size of the plant
  • shape of the leaf
  • type of the fruit
The leaf size of vegetation is a function of ______.
  • temperature
  • moisture availability
  • altitude
  • temperature and moisture both
The angular speed of a whirlwind in a tornado towards the center _______.
  • decreases rapidly
  • increases
  • remains constant
  • slowly becomes zero
Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why?
Southern hemisphere as compared to Northern hemisphere has less landmass.
Coriolis force is higher in Southern hemisphere as compared to Northern hemisphere.
Which of the statements given above is/are correct?
  • Only 1
  • Only 2
  • Both 1 and 2
  • Neither 1 nor 2
Which one of the following is a planetary wind? 
  • Monsoon
  • Trade
  • Chinook
  • Mistral
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