Kerala Class 8 Social Science Chapter 12 Water on Earth MCQ
Kerala Class 8 Social Science Chapter 12 Water on Earth MCQ Question and Answer for Students. SCERT Kerala Class 8 Social Science Part 2 Water on Earth MCQ.
Multiple choice questions
( I ) Choose the best answer
( 1 ) Every year , the World Water Day is celebrated on
a ) 21st April b ) 22nd March
c ) 23rd June d ) 25th August
Answer :b ) 22nd March
( 2 ) The subsistence of life on earth is hugely dependent on
a ) Water b ) Sediments
c ) Silt d ) Gravel
Answer : a ) Water
( 3 ) Water is regarded as one of the most valuable
a )Artificial resources b ) Synthetic resources
c ) Natural resources d ) Non – Synthetic resources
Answer : c ) Natural resources
( 4 ) The watery planet is another name that is given to
a ) Jupiter b ) Mars
c ) Venus d ) Earth
Answer : d ) Earth
( 5 ) The earth is popularly termed as the watery planet due to the fact that three – fourth portion of the surface of the earth is enclosed with
a ) Soil b ) Water
c ) Air d ) Dust
Answer : b ) Water
( 6 ) Nearly 71% of the surface of the earth is enclosed with water , owing to this reason it is perceived as
a ) Black b ) Grey
c ) Blue d ) Blue
Answer : c ) Blue
( 7 ) On freezing , there is a reduction in density that enables the ice to rest on
a ) Water b ) Land
c ) Mantle d ) Crust
Answer : a ) Water
( 8 ) Springs acts as one of the most appropriate sources of
a ) Air b ) Lava
c ) Water d ) Fusion
Answer : c ) Water
( 9 ) The presence of saline water on earth is quite more in comparison to the
a ) Sterile water b ) Fresh water
c ) Marine water d ) Unfiltered water
Answer : b ) Fresh water
( 10 ) The accessibility of fresh water for humans accounts upto
a ) 0.33 % b ) 4 %
c ) 97 % d ) 65 %
Answer : a ) 0.33 %
( 11 ) Surface water and ground water are primarily the two typesof
a ) Stages of water b ) Modes of water
c ) Velocity of water d ) Sources of water
Answer : d ) Sources of water
( 12 ) The sources of fresh water mainly includes
a ) Lakes b ) Oceans
c ) Backwaters and rivers d All of the above
Answer : d All of the above
( 13 ) Ponds , tube wells and wells are some of the key examples of
a ) The sources of fresh water b ) The sources of refined water
c ) The sources of ground water d ) The sources of non saline water
Answer : c ) The sources of ground water
( 14 ) When hot water passes from the internal segment of the planet Earth then it leads to the formation of
a ) Cold springs b ) Hot springs
c ) Glacier springs d ) Floating springs
Answer : b ) Hot springs
( 15 ) The prevalence of hot springs are highly noted in
a ) Syrian desert b ) Thar desert
c ) Himalayan Valleys d ) Rough terrain
Answer : c ) Himalayan Valleys
( 16 ) Oases basically refers to such places in the desert where there is an accessibility of
a ) Saline water b ) Ground water
c ) Unrefined water d ) Fresh water
Answer : d ) Fresh water
( 17 ) The rocks that possesses the capacity to transfer water with the help of the pores , then such variety of rocks is termed as
a ) Permeability b ) Non – permeability
c ) Impenetrable d ) Reluctivity
Answer : a ) Permeability
( 18 ) The level of dense water content underneath the ground is popularly labelled as
a ) Soil table b ) Oceanic table
c ) Water table d ) Continental table
Answer : c ) Water table
( 19 ) The storage spaces that helps inaccumulating the percolated water from the top layer of the soil is known by the term of
a ) Reservoirs b ) Vector
c ) Aquifers d ) Seepage
Answer : c ) Aquifers
( 20 ) The water table increases at the time of monsoon season but it decreases at the time of
a ) Winter season b ) Summer season
c ) Autumn season d ) Spring season
Answer : b ) Summer season
( 21 ) The water level in the well are formed as the result of the upper level of the
a ) Spring b ) Dam
c ) Tunnel d ) Water table
Answer : d ) Water table
( 22 ) The shallow tube wells that are digged in the grainy areas basically refers to the
a ) Filter point wells b ) Artesian well
c ) Wetlands d ) Geysers
Answer : a ) Filter point wells
( 23 ) Artesian well refers to those kind of wells where there is an automatic increase in water as the result of
a ) Surface transformation b ) Surface contraction
c ) Surface pressure d ) Surface expansion
Answer : c ) Surface pressure
( 24 ) There is an upsurge of water through the surface , the moment the water table comes into contact with the ground . This is appropriately called as
a ) Well b ) Springs
c ) Infiltration d ) Aquifers
Answer : b ) Springs
( 25 ) The occurrence of drasticexpulsion of water from the internal segment of the planet Earth following a systematic time duration is specified as
a ) Hot springs b ) Cold springs
c ) Water falls d ) Geysers
Answer : d ) Geysers
( 26 )The Old Faithful geyser in USA is extremely popular as it represents one of the most relevant illustration of
a ) Geysers b ) Volcanic eruptions
c ) Glaciers d ) Fumaroles
Answer : a ) Geysers
( 27 ) The natural submergence of water body on the raised part of the ground is known as
a ) Dry land b ) Plough land
c ) Wetlands d ) Tillage
Answer :c ) Wetlands
( 28 ) Lakes , flat lands and marshy areas fall within the domain of
a ) High laying areas b ) Low lying areas
c ) Elevated areas d ) Uplifted areas
Answer : b ) Low lying areas
( 29 ) Reclamation of wetlands paves the way to various
a ) Issues of immigration b ) Problems of overpopulation
c ) Non – environmental problems d ) Ecological issues
Answer : d ) Ecological issues
( 30 ) World Watershed Day is primarily recognised on
a ) 2nd February b ) 4th April
c ) 6th May d ) 14th July
Answer : a ) 2nd February
( 31 ) An adequate quantity of fresh water is utilised for the purpose of carrying out
a ) Non – agrarian activities b ) Weaving
c ) Agrarian activities d ) Quilting
Answer : c ) Agrarian activities
( 32 ) Water is not only used for domestic purposes but it’s use is widely reflected in the sphere of
a ) Stagnation b ) Water transportation
c ) Depletion d ) Generation
Answer : b ) Water transportation
( 33 ) In contemporary times , the accessibility of fresh water are on the edge of
a ) Exhaustion b ) Expansion
c ) Inflation d ) Intensification
Answer : a ) Exhaustion
( 34 ) There is a drastic reduction in the accessibility of water with an expansion in the density of
a ) Production b ) Distribution
c ) Preservation d ) Population
Answer : d ) Population
( 35 ) In order to facilitate availability of water , an ATM for waterhas been developed in the state of
a ) West Bengal b ) Himachal Pradesh
c ) Karnataka d ) Sikkim
Answer : c ) Karnataka
( 36 ) The main aim of constructing an ATM for water was to overcome the shortage of water that resulted due to the condition of
a ) Flood b ) Drought
c ) Pandemic d ) Earthquake
Answer : b ) Drought
( 37 ) The contaminants that are discharged from the industrial sites acts as one of the major sources that gives rise to
a ) Water pollution b ) Water cycle
c ) Carbon cycle d ) Oxygen cycle
Answer : a ) Water pollution
( 38 ) The health condition of the people gets severely deteriorated due to the negativeimpact of
a ) Hydrological cycle b ) Nitrogen cycle
c ) Phosphorus cycle d ) Water pollution
Answer : d ) Water pollution
( 39 ) When the hazardous materials gets combined with refined water then it contaminates the water by making it unfit for human use . This is known by the term of
a ) Air pollution b ) Land Pollution
c ) Water pollution d ) Noise pollution
Answer : c ) Water pollution
( 40 ) The prevalence of Water Act in India helps in regulating
a ) Water pollution b ) Water transportation
c ) Recycling of water d ) Water condensation
Answer : a ) Water pollution
( 41 ) Water pollution is not only responsible for fluctuating the accessibility of fresh water but it also results in
a ) Ozone depletion b ) Air pollution
c ) Land pollution d ) Both b and c
Answer : d ) Both b and c
( 42 ) Several effective measures must be adopted by the people in order to inspect
a ) Soil erosion b ) Water pollution
c ) Water resource d ) Soil conservation
Answer : b ) Water pollution
( 43 ) Efficient use of rain water can contribute in dealing with some of the major problems of
a ) Drought b ) Tsunami
c ) Soil pollution d ) Drought and shortage of water
Answer : d ) Drought and shortage of water
( 44 ) Soil is regarded as one of the greatest depository of
a ) Water b ) Air
c ) Land d ) Storm
Answer : a ) Water
( 45 ) Which one of the following method must be adopted in order to diminish unwanted misuse of water ?
a ) Water transportation b ) Water cycle
c ) Water conservation d ) Water abolition
Answer : c ) Water conservation
( 46 ) Inspite of receiving huge quantity of rainfall , the shortage of fresh water is perceived as a major issue in the state of
a ) Punjab b ) Kerala
c ) Uttarakhand d ) Arunachal Pradesh
Answer : b ) Kerala
( 47 ) As a result of unsystematic human interferences , the aquatic ecosystem are on the verge of
a ) Enhancement b ) Integration
c ) Restoration d ) Reduction
Answer : d ) Reduction
( 48 ) Rainwater harvesting is considered as one of the most appropriate technique to deal with the issue of
a ) Water shortage b ) Deforestation
c ) Soil degradation d ) Overpopulation
Answer : a ) Water shortage
( 49 ) Rainwater harvesting can be conducted in two distinct ways such as
a )Storage of surface runoff b ) Roof top rainwater harvesting
c ) Depletion od surface runoff d ) Both a and b
Answer : d ) Both a and b
( 50 ) Accumulating rainwater in cisterns or unloading it to the ground can positively contribute in increasing the level of the
a )Aquifer b ) Reservoir
c ) Underground water d ) Spring
Answer : c ) Underground water
( 51 ) Terrace farming , composting and preservation of tree plantations acts as some of the most significant ways to conserve the rainwater in the
a ) Clay b ) Silt
c ) Sediment d ) Soil
Answer : d ) Soil
( 52 )The process of percolating water through the soil assists in the sphere of
a ) Soil erosion b ) Water scarcity
c ) Soil and water conservation d ) Water wastage
Answer : c ) Soil and water conservation
( 53 ) When the sewage water undergoes effective treatments in order to make it suitable for further usage , then it is known as
a ) Water table b ) Water cycling
c ) Water harvesting d ) Water precipitation
Answer : b ) Water cycling
( 54 ) Water recycling plays an essential role in retaining the supply of
a ) Freshwater b ) Saline water
c ) Brackish water d ) Alkaline water
Answer : a ) Freshwater
( 55 ) In order to conserve water , some of the key steps that must be adopted are
a ) Recycling of water b ) Rainwater harvesting
c ) Water conservation d ) All of the above
Answer : d ) All of the above