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Question Bank

KSET Environmental Science (Paper 2) Exam - English

Duration: 120 · Questions: 100 · Max Marks: 200 · Language: 3

View Karnataka SET Environmental Science 2026 Exam Page

Environmental Science

1
Mesoscale Meteorogical Phenomena occur over areas of horizontal distance in the range (km)
  1. A.100 – 200 km
  2. B.1 – 100 km
  3. C.10 – 50 km
  4. D.1 – 10 km
2
The Indian monsoon period is from
  1. A.October to November
  2. B.December to February
  3. C.June to September
  4. D.March to May
3
Thermal stratification of aquatic ecosystems takes place in
  1. A.tropical lakes
  2. B.temperate lakes
  3. C.glacier lakes
  4. D.meandering rivers
4
The scale length of pressure variations in atmosphere in vertical direction in about
  1. A.3 km
  2. B.4.8 km
  3. C.7 km
  4. D.12 km
5
Which one of the following elements contributes maximum to the earth crust by weight
  1. A.Iron
  2. B.Silicon
  3. C.Oxygen
  4. D.Carbon
6
The lowest temperature is observed in which layer of the atmosphere
  1. A.Troposphere
  2. B.Stralosphere
  3. C.Mesosphere
  4. D.Thermosphere
7
For a clear night and with windspeeds< 3 m/s , the atmosphere is
  1. A.stable
  2. B.slightly unstable
  3. C.neutral
  4. D.slightly stable
8
Assertion (A)  :  Chemosynthesis plays an important role in ‘S’ cycle.
Reason  (R)  :  In chemosynthesis, some sulphur compounds act as source of energy
Codes  :
  1. A.Both (A) and (R) true and (R) is the correct explanation.
  2. B.Both (A) and (R) are true and (R) is not the correct explanation.
  3. C.(A) is true, but (R) is false.
  4. D.(A) is false, but (R) is true.
9
An endotherm basal metabolic rate stays constant throughout a range of environmental temperatures known as the:
I.  Lower critical temperature zone
II.  Thermoneutral zone
III.  Higher critical temperature zoneChoose the correct answer:
  1. A.I only
  2. B.II only
  3. C.I and II only
  4. D.II and III only
10
Which of the following is/are types of pollution that affect the environment?
  1. A.Air pollution
  2. B.Water pollution
  3. C.Land pollution
  4. D.All of the mentioned
11
Assertion (A) Biosphere constitutes an excellent life- support system which is sustainable and can fulfill all human needs .
Reason (R): The size and productivity of  the biosphere is limited availability of water, nutrients and environmental conditions .Identify the correct code:
  1. A.Both (a) and (r) are true and (r) is the correct explanation of (a)
  2. B.Both (a) and (r) are true, but (r) is not the correct explanation of (a).
  3. C.(a) is true but (r) is false.
  4. D.(a) is false but (r) is true .
12
Geostrophic wind occurs when pressure gradient force balances
  1. A.Coriolis force
  2. B.Fricitonal force
  3. C.Centrpetal force
  4. D.Coriolis and frictional force together
13
Assertion (A) : Every country should integrate the principles of sustainable development into its policies and programmes.
Reason (R) :Environmental resources are a nation’s wealth
Chooes the correctcode from the following
  1. A.Both (A) and (R) are  true and (R) is the correct explanation of (A).
  2. B.Both (A) and (R)  are true ,but (R) is not the correct explanation of (A).
  3. C.(A) is true but (R) is false.
  4. D.(A) is false but (R) is true
14
wind rose represents statistical distribution of.
  1. A.wind velocity in vector from
  2. B.wind speeds in scalar from
  3. C.wind speeds in π diagram
  4. D.wind speeds in the from of histograms
15
If the standard deviation of a population is 20 and the standard error of mean is ,then the sample size is
  1. A.25
  2. B.80
  3. C.5
  4. D.100
16
In a multiple regression model , the explained variance per d.f .is 50 and unexplained  variance per d.f. is 10 the F-ratio is
  1. A.2.5
  2. B.5
  3. C.25
  4. D.0.2
17
What are the steps necessary for sustainable management of renewable resources?
  1. A.Avoiding over-exploitation and pollution of biotic systems.
  2. B.Strengthening the resource base and augmentingregenerability of biotic systems .
  3. C.Use of alternative resources .
  4. D.All of these
18
Fluxes of heat ,water vapour and momentum are constant in
  1. A.upper atmosphere
  2. B.middle atmosphere
  3. C.Ekman layer
  4. D.surface boundary layer
19
Identify the correct sequence of energy flow through various levels of an ecosystem
  1. A.
    Sun’s energy→ Primary producers →Carnivores
  2. B.
    Sun’s energy→ Primary producers →Carnivores→ Herbivores
  3. C.
    Sun’s energy →Herbivores→ Primary producers
  4. D.
    Sun’ senergy→ Primary producers →Herbivores →Carnivores
20
When environmental lapse rate is more than dry adiabatic lapse rate, the atmosphere is said to be in
  1. A.Stable state
  2. B.
    Unstable state
  3. C.
    Neutral state
  4. D.
    Conditionally stable state
21
The grain size (USDA) of silt in soil ranges between :
  1. A.0.2 mm to 0.5 mm
  2. B.0.5 mm to 0.1 mm
  3. C.0.1 mm to 0.05 mm
  4. D.0.05 mm to 0.002 mm
22
What will be BOD, for a wastewater sample when 21 ml of sample is diluted to 300 ml in BOD bottle to determine dissolved oxygen .
[Given: Initial DO, = 10 mg/l; Five days later DO5 = 5 mg/l]
  1. A.~ 5 mg/l
  2. B.~ 25 mg/l
  3. C.~ 71.4 mg/l
  4. D.~75 mg/l
23
Environmental Science is best defined as?
  1. A.Study of interaction between physical, chemical and biological components of environment
  2. B.Study of only plants
  3. C.Study of only atmosphere
  4. D.Study of only animals
24
The scope of Environmental Science includes?
  1. A.Interdisciplinary study of environment and its components
  2. B.Only chemistry
  3. C.Only geology
  4. D.Only physics
25
The main principle of Environmental Science is?
  1. A.Isolation of ecosystem
  2. B.Interdependence of living and non-living components
  3. C.Human dominance over nature
  4. D.Independent functioning of species
26
Environment includes?
  1. A.Only biotic factors
  2. B.Only abiotic factors
  3. C.Only humans
  4. D.Both biotic and abiotic factors
27
Which is NOT a component of environment?
  1. A.Technology
  2. B.Hydrosphere
  3. C.Lithosphere
  4. D.Atmosphere
28
Environmental Science is a?
  1. A.Pure science
  2. B.Medical science
  3. C.Social science only
  4. D.Applied science
29
The term environment refers to?
  1. A.Surroundings influencing living organisms
  2. B.Only forests
  3. C.Only surroundings of humans
  4. D.Only water bodies
30
Which of the following is a biotic component?
  1. A.Plants
  2. B.Water
  3. C.Soil
  4. D.Air
31
Abiotic component includes?
  1. A.Animals
  2. B.Plants
  3. C.Temperature
  4. D.Bacteria
32
Environmental Science is mainly concerned with?
  1. A.Industrial growth only
  2. B.Human health only
  3. C.Sustainable interaction between organisms and environment
  4. D.Space science
33
Ecosystem study comes under?
  1. A.Physics
  2. B.Astronomy
  3. C.Mathematics
  4. D.Environmental Science
34
The goal of Environmental Science is?
  1. A.Conservation and sustainable use of resources
  2. B.Environmental degradation
  3. C.Exploitation of resources
  4. D.Industrial expansion only
35
Which branch is closely related to Environmental Science?
  1. A.Economics
  2. B.All of these
  3. C.Sociology
  4. D.Political science
36
Environmental Science is important for?
  1. A.Understanding human-environment interaction
  2. B.Space exploration
  3. C.Building machines
  4. D.Coding systems
37
The study of pollution is part of?
  1. A.Literature
  2. B.Geometry
  3. C.Astrology
  4. D.Environmental Science
38
Natural environment includes?
  1. A.Roads and buildings
  2. B.Cities only
  3. C.Industries only
  4. D.Forests, rivers, mountains
39
Human environment includes?
  1. A.Only forests
  2. B.Only water bodies
  3. C.Social and cultural surroundings created by humans
  4. D.Only mountains
40
Environmental Science helps in?
  1. A.Increasing pollution
  2. B.Environmental protection and management
  3. C.Resource destruction
  4. D.War strategies
41
The basic unit of environment is?
  1. A.Ecosystem
  2. B.Cell
  3. C.Atom
  4. D.Molecule
42
Environmental Science is interdisciplinary because?
  1. A.It studies only one subject
  2. B.It avoids biology
  3. C.It combines multiple fields of study
  4. D.It avoids chemistry
43
Which is a physical component of environment?
  1. A.Fish
  2. B.Rocks
  3. C.Trees
  4. D.Birds
44
Which is a biological component?
  1. A.Air
  2. B.Soil
  3. C.Temperature
  4. D.Microorganisms
45
Environment affects living organisms through?
  1. A.Isolation
  2. B.No interaction
  3. C.Interaction of factors
  4. D.Random processes only
46
Environmental Science originated due to?
  1. A.Space age
  2. B.Industrial revolution
  3. C.Agricultural revolution only
  4. D.Digital revolution
47
Which is a scope of Environmental Science?
  1. A.Only coding
  2. B.Only physics equations
  3. C.Only literature study
  4. D.Waste management
48
Sustainable development means?
  1. A.Resource destruction
  2. B.Overuse of resources
  3. C.Meeting present needs without harming future needs
  4. D.Industrial expansion only
49
Environmental Science helps in solving?
  1. A.Mathematical equations
  2. B.Environmental problems
  3. C.Computer coding issues
  4. D.Language problems
50
Ecosystem includes?
  1. A.Only plants
  2. B.Interaction of biotic and abiotic components
  3. C.Only animals
  4. D.Only humans
51
Which is a human-made environment?
  1. A.Forest
  2. B.River
  3. C.City
  4. D.Mountain
52
Environmental Science is essential for?
  1. A.Sustainable living
  2. B.Ignoring pollution
  3. C.Increasing waste
  4. D.Reducing biodiversity
53
The study of environment includes?
  1. A.Only biology
  2. B.Physical, biological and social aspects
  3. C.Only chemistry
  4. D.Only physics
54
Which is NOT studied in Environmental Science?
  1. A.Literature
  2. B.Ecology
  3. C.Pollution
  4. D.Resource management
55
Environmental balance means?
  1. A.Ecosystem destruction
  2. B.Stability of ecosystem components
  3. C.Increase in pollution
  4. D.Decrease in biodiversity
56
Which is a renewable resource?
  1. A.Coal
  2. B.Petroleum
  3. C.Solar energy
  4. D.Natural gas
57
Non-renewable resource is?
  1. A.Coal
  2. B.Sunlight
  3. C.Wind
  4. D.Water
58
Environmental Science is linked with?
  1. A.Only engineering
  2. B.Only medicine
  3. C.All scientific disciplines
  4. D.Only mathematics
59
Pollution study belongs to?
  1. A.Environmental Science
  2. B.Astronomy
  3. C.Geometry
  4. D.Literature
60
The main aim of environmental study is?
  1. A.Exploitation
  2. B.Destruction
  3. C.Conservation
  4. D.Ignorance
61
Which is a component of ecosystem?
  1. A.All of these
  2. B.Consumers
  3. C.Decomposers
  4. D.Producers
62
Environmental Science is a field of?
  1. A.Only arts
  2. B.Only commerce
  3. C.Law
  4. D.Science
63
Natural environment does NOT include?
  1. A.Air
  2. B.Water
  3. C.Roads
  4. D.Soil
64
Human activities affect environment by?
  1. A.No change
  2. B.Always improving
  3. C.Pollution and modification
  4. D.No interaction
65
Biodiversity refers to?
  1. A.Only plants
  2. B.Only animals
  3. C.Only microbes
  4. D.Variety of life forms
66
Environmental Science helps in?
  1. A.Resource misuse
  2. B.Pollution increase
  3. C.Sustainable resource use
  4. D.Deforestation
67
Which is a goal of environmental education?
  1. A.Ignorance
  2. B.Exploitation
  3. C.Pollution
  4. D.Awareness
68
Ecosystem stability depends on?
  1. A.One species
  2. B.Balance among components
  3. C.Only humans
  4. D.Only animals
69
Environment includes?
  1. A.Only land
  2. B.Surrounding conditions affecting life
  3. C.Only water
  4. D.Only air
70
Environmental Science is important for?
  1. A.Ignoring ecology
  2. B.Understanding nature
  3. C.Increasing waste
  4. D.Industrial pollution only
71
Which is abiotic factor?
  1. A.Frog
  2. B.Grass
  3. C.Fish
  4. D.Sunlight
72
Biotic factor includes?
  1. A.Air
  2. B.Water
  3. C.Soil
  4. D.Plants and animals
73
Environmental Science is concerned with?
  1. A.Only technology
  2. B.Only economics
  3. C.Environment and its interaction with life
  4. D.Only politics
74
Sustainable development ensures?
  1. A.Future resource depletion
  2. B.Pollution increase
  3. C.No resource use
  4. D.Balanced resource use
75
Environmental Science is necessary for?
  1. A.Conservation policies
  2. B.Environmental degradation
  3. C.War planning
  4. D.Space missions
76
Which is an example of ecosystem?
  1. A.Car
  2. B.Computer
  3. C.Lake
  4. D.Building
77
Environment science deals with?
  1. A.Only chemical reactions
  2. B.Only physics laws
  3. C.Only mathematics
  4. D.Interaction of organisms with environment
78
Main concern of Environmental Science is?
  1. A.Environmental protection
  2. B.Industrial profit
  3. C.Space exploration
  4. D.Robotics
79
Environmental awareness leads to?
  1. A.Pollution increase
  2. B.Resource wastage
  3. C.Sustainable behavior
  4. D.Ecosystem destruction
80
Environmental Science is important for solving?
  1. A.Environmental issues
  2. B.Only theoretical problems
  3. C.Only computer problems
  4. D.Only mathematical problems
81
The atmosphere of Earth is mainly composed of?
  1. A.Oxygen only
  2. B.Nitrogen and oxygen
  3. C.Carbon dioxide only
  4. D.Hydrogen only
82
Nitrogen in the atmosphere is approximately?
  1. A.21%
  2. B.1%
  3. C.78%
  4. D.0.03%
83
Oxygen in the atmosphere is approximately?
  1. A.78%
  2. B.0.04%
  3. C.0.9%
  4. D.21%
84
The lowest layer of the atmosphere is?
  1. A.Stratosphere
  2. B.Troposphere
  3. C.Mesosphere
  4. D.Thermosphere
85
Weather phenomena occur in?
  1. A.Troposphere
  2. B.Stratosphere
  3. C.Mesosphere
  4. D.Exosphere
86
Ozone layer is found in?
  1. A.Troposphere
  2. B.Thermosphere
  3. C.Mesosphere
  4. D.Stratosphere
87
Hydrosphere refers to?
  1. A.Water component of Earth
  2. B.Land surface
  3. C.Air layer
  4. D.Living organisms
88
Most of Earth's water is found in?
  1. A.Rivers
  2. B.Oceans
  3. C.Lakes
  4. D.Groundwater
89
Freshwater on Earth is approximately?
  1. A.97%
  2. B.3%
  3. C.50%
  4. D.10%
90
Lithosphere refers to?
  1. A.Water layer
  2. B.Solid outer layer of Earth
  3. C.Air layer
  4. D.Living layer
91
Biosphere includes?
  1. A.All living organisms and their environment
  2. B.Only water
  3. C.Only air
  4. D.Only land
92
The atmosphere extends up to approximately?
  1. A.10 km
  2. B.50 km
  3. C.1 km
  4. D.1000 km+
93
The main greenhouse gas in atmosphere is?
  1. A.Oxygen
  2. B.Carbon dioxide
  3. C.Nitrogen
  4. D.Argon
94
Water vapor is mainly present in?
  1. A.Troposphere
  2. B.Mesosphere
  3. C.Thermosphere
  4. D.Exosphere
95
The lithosphere consists of?
  1. A.Core only
  2. B.Atmosphere
  3. C.Crust and upper mantle
  4. D.Hydrosphere
96
Earth's crust is made of?
  1. A.Only gases
  2. B.Rocks and minerals
  3. C.Only water
  4. D.Only organic matter
97
Hydrological cycle involves movement of?
  1. A.Water
  2. B.Rocks
  3. C.Air
  4. D.Soil only
98
Biosphere interacts with?
  1. A.Only atmosphere
  2. B.Atmosphere, hydrosphere and lithosphere
  3. C.Only hydrosphere
  4. D.Only lithosphere
99
The densest layer of Earth is?
  1. A.Crust
  2. B.Mantle
  3. C.Lithosphere
  4. D.Core
100
Atmosphere protects Earth from?
  1. A.Gravity
  2. B.Meteorites and UV radiation
  3. C.Soil erosion
  4. D.Earthquakes
Question for Karnataka SET Environmental Science 2026 - Quiz / Questions / MCQ - Toppersexam