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Exam Date: 08-Oct-2020
Exam Time: 09:00-12:00
Examination: 1. Course Code - Ph.D.
2. Field of Study - ENVIRONMENTAL SCIENCES
Area-I (ONEH)
SECTION 1 - SECTION 1
Question No.1 (Question Id - 16)
(A)
A only (Correct Answer)
(B)
B only
(C)
D only
(D)
C only
Question No.2 (Question Id - 64)
Coastline migration to inland and seaward due to rise and fall of sea level is known as :
(A)
Advances and retreat processes
(B)
Transgression and regression processes (Correct Answer)
(C)
Erosion and Accretion processes
(D)
All the above
Question No.3 (Question Id - 27)
Web of Science releases the list of journal impact factor every :
(A)
One year (Correct Answer)
(B)
Two years
(C)
Three years
(D)
Five years
Question No.4 (Question Id - 87)
(A)
A - IV, B - III, C - II, D - I (Correct Answer)
(B)
A - I, B - III, C - IV, D - II
(C)
A - III, B - II, C - I, D - IV
(D)
A - II, B - I, C - III, D - IV
Question No.5 (Question Id - 84)
Which of the following statements about the Coriolis force is correct ?
(A)
Coriolis force acts to its left in the northern hemisphere.
(B)
Coriolis force acts to its left in the southern hemisphere. (Correct Answer)
(C)
Coriolis force is maximum at the equator.
(D)
Coriolis force is zero at the poles.
Question No.6 (Question Id - 47)
The need to review the exiting literature is :
(A)
To make a long list of references
(B)
To cite references as much as possible
(C)
To find out what is known in area of research (Correct Answer)
(D)
To develop a chapter in thesis
Question No.7 (Question Id - 62)
Volcanoes that were active in the past but have shut off entirely and will never erupt in future are called
as :
(A)
Active volcanoes
(B)
Dormant volcanoes
(C)
Extinct volcanoes (Correct Answer)
(D)
All the above
Question No.8 (Question Id - 40)
Mathematical expression of standardized anomaly of a time series x1, x2, x3, ......, xi having standard
deviation `s' is :
(A)
(B)
(C)
(Correct Answer)
(D)
Question No.9 (Question Id - 1)
Ingamell's sampling for calcium analysis in soil samples is 0.50 gm. What weight should be taken to
obtain sampling precision of 0.2% RSD in the analysis ?
(A)
0.25
(B)
12.5 (Correct Answer)
(C)
1.00
(D)
2.00
Question No.10 (Question Id - 23)
Which of the following software is NOT used for checking plagiarism ?
(A)
Copyleaks
(B)
Quetext
(C)
Norton (Correct Answer)
(D)
Viper
Question No.11 (Question Id - 78)
(A)
A - I, B - II, C - III, D - IV
(B)
A - IV, B - III, C - I, D - II
(C)
A - II, B - III, C - IV, D - I (Correct Answer)
(D)
A - III, B - IV, C - II, D - I
Question No.12 (Question Id - 12)
A discrete sample is collected at a specific location in a particular time is called as :
(A)
Composite sample
(B)
Random sample
(C)
Statigraphic sample
(D)
Grab sample (Correct Answer)
Question No.13 (Question Id - 89)
Which of the mineral alteration takes place due to hydrolysis process ?
A. Pyrite to Hematite
B. Calcite to Bicarbonate and Calcium
C. Feldspar to Clay
D. Pyroxene to Iron Oxide
Choose the correct answer.
(A)
A only
(B)
C only (Correct Answer)
(C)
B and C only
(D)
C and D only
Question No.14 (Question Id - 3)
Which of the following number contains more than three significant figures ?
(A)
0.216
(B)
90.7
(C)
800.0 (Correct Answer)
(D)
0.0670
Question No.15 (Question Id - 29)
Assertion A :
In theoretical sampling, sample size is not defined in advance.
Reason R :
In theoretical sampling, extension of the basic population is not known in advance.
In the light of the above statements, choose the most appropriate answer from the options given
below :
(A)
Both A and R are correct and R is the correct explanation of A (Correct Answer)
(B)
Both A and R are correct, but R is NOT the correct explanation of A
(C)
A is correct, but R is not correct
(D)
A is not correct, but R is correct
Question No.16 (Question Id - 57)
(A)
Halogenation
(B)
Friedel-Crafts alkylation (Correct Answer)
(C)
Friedel-Crafts acylation
(D)
Sulfonation
Question No.17 (Question Id - 22)
Ethics committee involves a group of experienced people :
(A)
Who understand the research problem.
(B)
Who understand the degree of ethical issues considered in research problem. (Correct
Answer)
(C)
Who are useful in drawing line of action in research problem.
(D)
Who think about and hypothesis research problem.
Question No.18 (Question Id - 67)
Large crystals within a fine grained rock give an evidence of :
(A)
Relatively slow cooling
(B)
Different rate of cooling (Correct Answer)
(C)
Relatively rapid cooling
(D)
Relatively slow warming
Question No.19 (Question Id - 31)
Likert scale measures :
(A)
a set of attitudes (Correct Answer)
(B)
a set of statements
(C)
a set of indicators
(D)
a set of variable
Question No.20 (Question Id - 18)
The triple point temperature at which ice, liquid water and water vapor coexist at equilibrium, is
approximately :
(A)
293.16 K
(B)
283.16 K
(C)
273.16 K (Correct Answer)
(D)
263.16 K
Question No.21 (Question Id - 13)
Bed sediment sample in a stream and river at particular site should NOT be collected from :
(A)
Downstream location (Correct Answer)
(B)
Locations free of debris obstacle
(C)
Upstream location
(D)
No mixing zone
Question No.22 (Question Id - 96)
Which of the following irrigation systems produces the most biomass per unit of water applied ?
(A)
Flood irrigation
(B)
Furrow irrigation
(C)
Drip irrigation (Correct Answer)
(D)
Sprinkle irrigation
Question No.23 (Question Id - 71)
(A)
A - III, B - I, C - IV, D - II
(B)
A - II, B - IV, C - I, D - III
(C)
A - IV, B - III, C - I, D - II
(D)
A - III, B - IV, C - I, D - II (Correct Answer)
Question No.24 (Question Id - 45)
Statement I :
Central limit theorem states that in the limit the sum of a set independent observation will have
Gaussian distribution.
Statement II :
The observations need not even be from the same distribution.
In the light of the above statements, choose the most appropriate answer from the options given
below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Both Statement I and Statement II are incorrect
(C)
Statement I is correct, but Statement II is incorrect
(D)
Statement I is incorrect, but Statement II is correct
Question No.25 (Question Id - 99)
The first Conference of Parties (COP) meeting in March 1995 was held in :
(A)
Madrid, Spain
(B)
Berlin, Germany (Correct Answer)
(C)
Warsaw, Poland
(D)
Kyota, Japan
Question No.26 (Question Id - 19)
Super-cooled (unfrozen) liquid water can exist between temperature of :
(A)
+ 40?C to - 40?C
(B)
0?C to - 40?C (Correct Answer)
(C)
+ 40?C to 0?C
(D)
0?C
Question No.27 (Question Id - 79)
Statement I :
Deterministic forecast gives a prediction of what will happen at a particular time and place.
Statement II :
Probabilistic forecast gives an indication of a probability of particular event within a particular time
frame or geographic location.
In light of the above statements, choose the most appropriate answer from the options given below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Both Statement I and Statement II are incorrect
(C)
Statement I is correct but Statement II is incorrect
(D)
Statement I is incorrect but Statement II is correct
Question No.28 (Question Id - 24)
A set of methods to analyse academic literature and scholarly communication quantitatively is known
as :
(A)
Informetrics
(B)
Bibliometrics (Correct Answer)
(C)
Webometrics
(D)
Scientometrics
Question No.29 (Question Id - 2)
Which of the following drying agent is not deliquescent in nature ?
(A)
CaCl2 (anhydrous)
(B)
MgClO4 (anhydrous)
(C)
P2O5
(D)
Silica gel (Correct Answer)
Question No.30 (Question Id - 59)
Which of the following compounds can exhibit cis/trans isomerism ?
(A)
1-heptene
(B)
2-heptene (Correct Answer)
(C)
2-methyl-2-hexene
(D)
3-ethyl-2-pentene
Question No.31 (Question Id - 33)
The square of sample standard deviation (s2) is known as :
(A)
Sample mean
(B)
Sample square
(C)
Sample deviation
(D)
Sample variance (Correct Answer)
Question No.32 (Question Id - 55)
(A)
A and B only
(B)
A, B and C only (Correct Answer)
(C)
C and D only
(D)
A, B, C and D
Question No.33 (Question Id - 63)
Medium to course grained rock formed at high temperature and has schistosity with long preferred
orientation of mica minerals is known as :
(A)
Gneiss
(B)
Phyllite
(C)
Schist (Correct Answer)
(D)
Slate
Question No.34 (Question Id - 4)
The pH of a 2.0 x 10-3 M solution of HCl is :
(A)
2.70 (Correct Answer)
(B)
3.30
(C)
1.70
(D)
3.70
Question No.35 (Question Id - 92)
Which of the following is NOT directly responsible for stratospheric ozone depletion ?
(A)
Supersonic aircraft
(B)
Nitric Acid tri-hydrate
(C)
Chlorofluorocarbon
(D)
Nitrogen dioxide (Correct Answer)
Question No.36 (Question Id - 82)
The rate of heat penetration in a material is dependent on its :
(A)
Kinematic viscosity
(B)
Thermal diffusivity (Correct Answer)
(C)
Specific density
(D)
Dynamic viscosity
Question No.37 (Question Id - 42)
Confidence interval around sample statistics is represented using :
(A)
Error bar (Correct Answer)
(B)
Range plot distribution
(C)
Type 1 error
(D)
Type 2 error
Question No.38 (Question Id - 48)
Which of the following correctly explains plagiarism ?
(A)
Make use of work of others to gather information
(B)
Make use of work of others and misrepresent it as your own (Correct Answer)
(C)
Make use of work of others to support your own argument
(D)
Make use of work of others to help shape you research objectives
Question No.39 (Question Id - 6)
Statement I :
Silica in a soil sample digested following combination of acids (HF, HNO3, HClO4) cannot be
determined using ICP-OES.
Statement II :
ICP-OES instrument is not capable of detecting silica.
In light of the above statements, choose the correct answer from the options given below :
(A)
Both Statement I and Statement II are correct
(B)
Both Statement I and Statement II are incorrect (Correct Answer)
(C)
Statement I is correct, but Statement II is incorrect
(D)
Statement I is incorrect, but Statement II is correct
Question No.40 (Question Id - 53)
Internal energy (U) of a system is :
A. A state property
B. Extensive property
C. Intensive property
D. Independent of state
Choose the correct option.
(A)
A and B only (Correct Answer)
(B)
A and C only
(C)
D and B only
(D)
D and C only
Question No.41 (Question Id - 97)
Landscape evolution can be best described :
(A)
Only during young landscape development
(B)
Only during periods of maximum rainfall
(C)
Only during climate change or crustal movements
(D)
Constantly in response to natural agents and processes (Correct Answer)
Question No.42 (Question Id - 91)
Which of the following is not a greenhouse gas ?
(A)
Methane
(B)
Nitrous Oxide
(C)
H2O vapor
(D)
Nitrogen dioxide (Correct Answer)
Question No.43 (Question Id - 68)
Oceanic crust made up of basalt has the density of :
(A)
2.70 g/cm3
(B)
3.35 g/cm3
(C)
3.05 g/cm3 (Correct Answer)
(D)
2.95 g/cm3
Question No.44 (Question Id - 32)
(A)
X1 = upper quartile; X2 = lower quartile (Correct Answer)
(B)
X1 = lower quartile; X2 = upper quartile
(C)
X1 = upper median; X2 = lower median
(D)
X1 = lower median; X2 = upper median
Question No.45 (Question Id - 49)
Which of the following best explains the ``informed consent'' while conducting surveys ?
(A)
Telling participants about yourself and your study
(B)
Telling participants that research ethics committee has approved your work
(C)
Telling participants about the research interest and their involvement (Correct Answer)
(D)
Telling participants about findings of research at the end of the research
Question No.46 (Question Id - 17)
Statement I :
Parametric tests are those conducted in situations where one knows or assumes that a particular
theoretical distribution is an appropriate representation for the data and/or test statistics.
Statement II :
Non-parametric or distribution-free tests are constructed without the necessity of assumptions about
what, if any, theoretical distribution pertain to the data at hand.
In light of the above statements, choose the most appropriate answer from the options given below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Both Statement I and Statement II are incorrect
(C)
Statement I is correct but Statement II is incorrect
(D)
Statement I is incorrect but Statement II is correct
Question No.47 (Question Id - 9)
(A)
A, C, D only
(B)
A, B, D only
(C)
B, C, D only
(D)
A, B, C and D (Correct Answer)
Question No.48 (Question Id - 100)
Which earth process would be increased if there were a slight increase in solar energy received by the
earth ?
A. Erosion
B. Infiltration
C. Evapotranspiration
D. Mountain building
Choose the correct answer given below :
(A)
C only (Correct Answer)
(B)
A and C only
(C)
A, B, C, D
(D)
A only
Question No.49 (Question Id - 50)
Which of the following is true regarding Beer's Law ?
(A)
Absorbance is proportional to both path length and concentration of absorbing species
(Correct Answer)
(B)
Absorbance is proportional to the log of the concentration of absorbing species
(C)
Absorbance is proportional to atmospheric pressure
(D)
Absorbance is proportional to volume of absorbing species
Question No.50 (Question Id - 15)
(A)
A - I, B - III, C - II, D - IV
(B)
A - I, B - II, C - III, D - IV (Correct Answer)
(C)
A - II, B - III, C - I, D - IV
(D)
A - IV, B - III, C - II, D - I
Question No.51 (Question Id - 54)
Van der Waals equation is correctly represented as :
(A)
(Correct Answer)
(B)
(C)
(D)
Question No.52 (Question Id - 72)
Arrange the following phases of Mitosis in their order of growth :
A. Anaphase
B. Metaphase
C. Prophase
D. Telophase
Choose the correct answer from the options given below :
(A)
A, B, C, D
(B)
B, C, A, D
(C)
C, B, A, D (Correct Answer)
(D)
C, A, D, B
Question No.53 (Question Id - 98)
Which of the following biogeochemical cycle do not involve gas phase ?
(A)
Nitrogen
(B)
Carbon
(C)
Phosphorus (Correct Answer)
(D)
Sulfur
Question No.54 (Question Id - 37)
(A)
A - I, B - II, C - III, D - IV
(B)
A - II, B - I, C - III, D - IV
(C)
A - III, B - II, C - I, D - IV
(D)
A - IV, B - I, C - II, D - III (Correct Answer)
Question No.55 (Question Id - 69)
Haemoglobin in human has the highest affinity to which of the following gas ?
(A)
CH4
(B)
CO (Correct Answer)
(C)
N2O
(D)
CO2
Question No.56 (Question Id - 35)
The most commonly used measure of dispersion is :
(A)
Average
(B)
Interquartile range
(C)
Standard deviation (Correct Answer)
(D)
Mean deviation
Question No.57 (Question Id - 41)
Stationarity in data time series corresponds to :
(A)
same underlying mean but varying variance
(B)
varying underlying mean but same variance
(C)
same underlying mean and variance (Correct Answer)
(D)
varying mean and variance
Question No.58 (Question Id - 7)
Difference between true value and measured value in analytical chemistry is termed as :
(A)
Mean error
(B)
Absolute error (Correct Answer)
(C)
Standard deviation
(D)
Relative error
Question No.59 (Question Id - 73)
If pi is the proportion to total sample represented by species i, and H' is the maximum possible
diversity then the Species diversity is represented by :
(A)
(B)
(Correct Answer)
(C)
(D)
Question No.60 (Question Id - 94)
Which is NOT a characteristic of a eutrophic lake ?
(A)
High fish population (Correct Answer)
(B)
High BOD
(C)
Low dissolved oxygen
(D)
High Benthic demand
Question No.61 (Question Id - 80)
(A)
A - I, B - II, C - III
(B)
A - III, B - II, C - I
(C)
A - III, B - I, C - II (Correct Answer)
(D)
A - II, B - III, C - I
Question No.62 (Question Id - 56)
Which of the following have highest ligand field strength ?
(A)
NH3
(B)
Cl-
(C)
(D)
CN- (Correct Answer)
Question No.63 (Question Id - 51)
(A)
A - II, B - I, C - IV, D - III (Correct Answer)
(B)
A - II, B - I, C - III, D - IV
(C)
A - I, B - II, C - IV, D - III
(D)
A - III, B - IV, C - I, D - II
Question No.64 (Question Id - 85)
The absorption of sound by a porous ground surface would be maximum among which of the following
frequency ranges ?
(A)
500 Hz (Correct Answer)
(B)
2000 Hz
(C)
10000 Hz
(D)
15000 Hz
Question No.65 (Question Id - 90)
A mass of fragmented rock will weather faster than a solid mass of the same weight and chemical
composition because :
A. Surface area is increased
B. The volume of the material is increased
C. Molecular structure is altered by crushing
D. The inner structure of the material is exposed
Choose the correct answer from the options below :
(A)
A, B and C only
(B)
B and D only
(C)
A only (Correct Answer)
(D)
C only
Question No.66 (Question Id - 30)
Layout of any scientific manuscript does not include :
(A)
Font
(B)
Margin
(C)
Breaks (Correct Answer)
(D)
Lines
Question No.67 (Question Id - 93)
Which of the following is considered necessary features for an area to be delineated as a wetland ?
(A)
Hydric soil (Correct Answer)
(B)
Shallow standing water
(C)
Aquatic vegetation
(D)
Organic soil
Question No.68 (Question Id - 76)
Statement I :
The convex curve (Type I) indicates remarkably low mortality during most part of the organism life and
heavy mortality when the members reach the age of senescence.
Statement II :
The concave curve (Type III) indicates excessively high mortality in early life.
In light of the above statements, choose the most appropriate answer from the options given below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Both Statement I and Statement II are incorrect
(C)
Statement I is correct but Statement II is incorrect
(D)
Statement I is incorrect but Statement II is correct
Question No.69 (Question Id - 5)
Match the instruments (left column) with corresponding gases (right column) used in their operation.
A. AAS
I. Air-Acetylene
B. ICP-OES
II. He
C. GC
III. Argon
D. Flame Photometer IV. LPG
Choose the correct answer from the options given below :
(A)
A - I, B - II, C - III, D - IV
(B)
A - I, B - III, C - II, D - IV (Correct Answer)
(C)
A - II, B - III, C - I, D - IV
(D)
A - IV, B - III, C - II, D - I
Question No.70 (Question Id - 34)
Mathematical expression of standard deviation, say "s", of a time series of a sample x1, x2, x3, ......, xi
is :
(A)
(B)
(C)
(Correct Answer)
(D)
Question No.71 (Question Id - 77)
(A)
A - II, B - III, C - IV, D - I (Correct Answer)
(B)
A - III, B - I, C - II, D - IV
(C)
A - IV, B - I, C - II, D - III
(D)
A - I, B - IV, C - II, D - III
Question No.72 (Question Id - 70)
Calcitriol is the biologically active form of which of the following vitamins :
(A)
B
(B)
C
(C)
D (Correct Answer)
(D)
E
Question No.73 (Question Id - 52)
Assertion A :
Temperature of 100 gm of water in a plastic beaker dropped from 18.2?C to 12.8?C after addition of
7.10 gm of NH4NO3.
Reason R :
Above reaction is endothermic in nature.
In the light of the above statements, choose the most appropriate answer from the options given
below :
(A)
Both A and R are correct and R is the correct explanation of A (Correct Answer)
(B)
Both A and R are correct but R is NOT the correct explanation of A
(C)
A is correct but R is not correct
(D)
A is not correct but R is correct
Question No.74 (Question Id - 20)
In a site assessment for the identification of contaminated source, which one of the following is the
most preferred ?
(A)
Judgmental sampling (Correct Answer)
(B)
Simple random sampling
(C)
Systematic random sampling
(D)
Search sampling
Question No.75 (Question Id - 61)
The water yielding capacity of an aquifer can be expressed in terms of its :
(A)
Transmissivity
(B)
Leaky aquifer
(C)
Storage coefficient (Correct Answer)
(D)
Hydraulic conductivity
Question No.76 (Question Id - 14)
Which of the following equipment is preferred for simultaneous analysis of metals in water samples ?
(A)
Atomic Absorption Spectrometer
(B)
Spectrophotometer
(C)
Inductively Couples Plasma - Optical Emission Spectrometer (Correct Answer)
(D)
Spectrofluorimeter
Question No.77 (Question Id - 81)
The energy available for the sensible, latent and ground heat fluxes is not partitioned equally between
them. However major partitioning of energy is in between sensible (H) and latent heat (LE) fluxes. The
H/LE is represent :
(A)
Emission ratio
(B)
Buduyko ratio
(C)
Partitioning ratio
(D)
Bowen ratio (Correct Answer)
Question No.78 (Question Id - 25)
Science Citation Index (SCI) was introduced by :
(A)
Scopus
(B)
Web of Science
(C)
Institute of Scientific Information (Correct Answer)
(D)
Clarivate
Question No.79 (Question Id - 43)
In 2-D cumulative frequency distribution plot, vertical and horizontal axes respectively correspond to :
(A)
data values in both axes
(B)
quantile probabilities and data values (Correct Answer)
(C)
data values and quantile probabilities
(D)
quantile probabilities in both axes
Question No.80 (Question Id - 46)
In the histogram, the range of data is divided into :
(A)
Bins (Correct Answer)
(B)
Orders
(C)
Series
(D)
Widths
Question No.81 (Question Id - 83)
The relationship between change in energy (E) and change in temperature (T) of a body of density
() and specific heat (C) is expressed as :
(A)
(B)
(C)
(D)
E = CT (Correct Answer)
Question No.82 (Question Id - 28)
i10-index of an author is available at :
(A)
Springer
(B)
Research Gate
(C)
Scopus
(D)
Google Scholar Citation (Correct Answer)
Question No.83 (Question Id - 66)
(A)
A - I, B - III, C - II, D - IV
(B)
A - III, B - II, C - I, D - IV
(C)
A - II, B - IV, C - III, D - I
(D)
A - IV, B - III, C - II, D - I (Correct Answer)
Question No.84 (Question Id - 36)
Statement I :
Sample skewness coefficient, a measure of symmetry in a batch of data is neither robust not resistant.
Statement II :
A robust and resistant alternative to the sample skewness is the Yule-Kendall index.
In the light of the above statements, choose the most appropriate answer from the options given
below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Statement I is correct, but Statement II is incorrect
(C)
Statement I is incorrect, but Statement II is correct
(D)
Both Statement I and II are incorrect
Question No.85 (Question Id - 38)
If p represents the probability of success and N represents the number of trails, then the probability (P)
that a random variable X takes a specific value x, is :
(A)
(Correct Answer)
(B)
P{X = x} = (N)px (1 - p)N-x
(C)
P{X = x} = (x) px (1 - p)N - x
(D)
Question No.86 (Question Id - 26)
Which of the following is a specific database of Medical or health-related research areas ?
(A)
PubMed (Correct Answer)
(B)
Scopus
(C)
Wed of Knowledge
(D)
Google Scholar
Question No.87 (Question Id - 60)
(A)
A (Correct Answer)
(B)
B
(C)
C
(D)
D
Question No.88 (Question Id - 65)
The mats of cyanobacteria occurs in rocks as fossil forms of bacteria and archea during the geological
period corresponding to approximately :
(A)
5.8 million years ago
(B)
3.2 million years ago (Correct Answer)
(C)
4.5 million years ago
(D)
5.2 million years ago
Question No.89 (Question Id - 95)
Which of the following is NOT formed during the decay of 238U ?
(A)
234Th
(B)
234U
(C)
208Pb (Correct Answer)
(D)
206Pb
Question No.90 (Question Id - 44)
In simple liner regression equation, the true value of predictant is the sum of :
(A)
Constants
(B)
Predicted values (Correct Answer)
(C)
Regression coefficient
(D)
Dependent variable
Question No.91 (Question Id - 58)
An IR spectrum of an unknown organic molecule having the formula C3H6O gives a strong absorption
at 1725 cm-1. To what class of compounds does the unknown belong ?
(A)
Acid chloride
(B)
Alkene
(C)
Ketone (Correct Answer)
(D)
Phenol
Question No.92 (Question Id - 88)
A lake that stays at one level of water is considered to be in a state of :
(A)
Static Equilibrium
(B)
Dynamic Equilibrium (Correct Answer)
(C)
Climatic Stability
(D)
Climatic Instability
Question No.93 (Question Id - 75)
Statement I :
In pine forest the C:N ratio in tree trunk is much higher than that of either branches or needles.
Statement II :
In pine forest, living needles have C:N ratio similar to those understory herbs living on forest floor.
In light of the above statements, choose the most appropriate answer from the options given below :
(A)
Both Statement I and Statement II are correct (Correct Answer)
(B)
Both Statement I and Statement II are incorrect
(C)
Statement I is correct but Statement II is incorrect
(D)
Statement I is incorrect but Statement II is correct
Question No.94 (Question Id - 39)
Pearson correlation coefficient of the two variables xi and yi is expressed as :
(A)
(B)
(Correct Answer)
(C)
(D)
Question No.95 (Question Id - 86)
Most of the terrestrial radiation is absorbed in the infrared portion of the electromagnetic radiation. The
major exception in the region between 8 and 14 ?m is called :
(A)
Terrestrial windows
(B)
Radiation windows
(C)
Atmospheric windows (Correct Answer)
(D)
Earth windows
Question No.96 (Question Id - 74)
The term `keystone species' was given by :
(A)
Robert Paine (Correct Answer)
(B)
Kirk Winemiller
(C)
Joseph Connell
(D)
David Tilman
Question No.97 (Question Id - 10)
Benzene measurements in the ground water samples are given below :
Measurement Benzene concentration (?g/L)
1 3.35
2 2.25
3 2.09
4 2.01
5 2.15
What will be the mean concentration (?g/L) ?
(A)
~2.73
(B)
~2.37 (Correct Answer)
(C)
~2.5
(D)
~3.0
Question No.98 (Question Id - 8)
Arrange the following as they occur from top to bottom in a typical soil profile.
A. Materials accumulated by illuviation
B. Zone which is not sufficiently altered by soil genesis
C. Mineral horizon with organic matter accumulation
D. Consolidated rock
Choose the correct answer from the options given below :
(A)
C, D, B, A
(B)
C, A, B, D (Correct Answer)
(C)
A, B, C, D
(D)
C, B, A, D
Question No.99 (Question Id - 21)
(A)
A - II, B - I, C - III, D - IV (Correct Answer)
(B)
A - III, B - I, C - II, D - IV
(C)
A - III, B - II, C - I, D - IV
(D)
A - IV, B - III, C - II, D - I
Question No.100 (Question Id - 11)
Which of the following statements are true for both gas chromatography and high pressure liquid
chromatography ?
A. The analyte is partitioned between a stationary phase and a gaseous phase.
B. The partitioning process occurs between stationary and liquid phase.
C. Separation is based on the affinity of the analyte of interest with stationary phase.
D. Analyte having the highest affinity is retained in the column.
Choose the correct statement .
(A)
A & B only
(B)
C & B only
(C)
C & D only (Correct Answer)
(D)
B & C only
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This post was last modified on 21 January 2021