Rajasthan Board Class 12 Question Paper 2025 Environmental Science

RAJASTHAN BOARD

QUESTION
PAPER
2025

ANNUAL EXAMINATION

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Zm_m§ H $ Roll No.

Tear Here
Sl.No. :

No. of Questions – 18
No. of Printed Pages – 11
SS–61–EVS

Cƒ _mÜ`{_H$ narjm, 2025
SENIOR SECONDARY EXAMINATION, 2025
n¶m©daU {dkmZ

TEAR HERE TO OPEN THE QUESTION PAPER
ENVIRONMENTAL SCIENCE
g_` : 3 KÊQ>o 15 {‘{ZQ>

àíZ nÌ H$mo ImobZo Ho$ {bE `hm± \$m‹S>|
nyUmªH$ : 56

narjm{W©`m| Ho$ {bE gm_mÝ` {ZX}e …
GENERAL INSTRUCTIONS TO THE EXAMINEES :

1) narjmWu gd©àW_ AnZo àíZ nÌ na AnZm Zm_m§H$ A{Zdm`©V… {bI|&
Candidate must write first his / her Roll No. on the question paper compulsorily.

2) g^r àíZ H$aZo A{Zdm`© h¢&
All the questions are compulsory.

3) àË`oH$ àíZ H$m CÎma Xr JB© CÎma-nwpñVH$m _| hr {bI|&
Write the answer to each question in the given answer-book only.
`hm± go H$m{Q>E

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4) {OZ àíZmo§ _| AmÝV[aH$ IÊS> h¡§, CZ g^r Ho$ CÎma EH$ gmW hr {bI|&

For questions having more than one part, the answers to those parts are to be
written together in continuity.

5) àíZ nÌ Ho$ {hÝXr d A§J«oOr ê$nmÝVaU _o| {H$gr àH$ma H$s Ìw{Q> / AÝVa / {damoYm^mg hmoZo na {hÝXr ^mfm
Ho$ àíZ H$mo hr ghr _mZ|&

If there is any kind of error / difference / contradiction in the Hindi & English
versions of the question paper, the question of Hindi version should be treated
valid.

6) àíZ H$m CÎma {bIZo go nyd© àíZ H$m H«$‘m§H$ Adí¶ {bI|&

Write down the serial number of the question before attempting it.

SS– 61–EVS 7037

3
IÊS> - A
SECTION - A

1) ~hþ{dH$ënr¶ àíZ: {ZåZ àíZm| Ho$ CÎma H$m ghr {dH$ën M¶Z H$a CÎma-nwpñVH$m ‘| {b{IE&
Multiple Choice Questions : Answer the following questions by selecting the correct
option and write them in the answer sheet.
i) {ZåZ{b{IV ‘| go dm¶w‘ÊS>b H$m g~go {ZMbm ñVa h¡& [½]
A) Q´>monmoñ’$s¶a ~) ‘rOmoñ’$s¶a
g) Am¶Zmoñ’$s¶a X) ñQ´>oQ>moñ’$s¶a
Which of the following is the lowest level of atmosphere?
A) Troposphere B) Mesosphere
C) Ionosphere D) Stratosphere
ii) amï´>r¶ n¶m©daU A{^¶m§{ÌH$s emoY g§ñWmZ [NEERI] H$hm± pñWV h¡? [½]
A) H$mZnwa ~) h¡Xam~mX
g) ZmJnwa X) Om¡Ynwa
The National Environment Engineering Research Institute is located in -
A) Kanpur B) Hyderabad
C) Nagpur D) Jodhpur
iii) àXÿ{fV Ob go hmoZo dmbo amoJ H$m CXmhaU h¡& [½]
A) ao~rO ~) E‘r~m¶{gg
g) AñW‘m X) ES²>g
An example of a disease caused by polluted water -
A) Rabbies B) Amoebiasis
C) Asthma D) AIDS
iv) NAPCC H$m nyam Zm‘ h¡ - [½]
A) Natural Action Plan on Climate Change
~) National Artificial Plan on Climate Change
g) Natural Action Plan on Community Change
X) National Action Plan on Climate Change
Full name of NAPCC -
A) Natural Action Plan on Climate Change
B) National Artificial Plan on Climate Change
C) Natural Action Plan on Community Change
D) National Action Plan on Climate Change

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v) AZdrZH$aUr¶ àmH¥${VH$ g§gmYZ H$m CXmhaU h¡ - [½]
A) gm¡a D$Om© ~) I{ZO nXmW©
g) ndZ D$Om© X) Ádmar¶ D$Om©
An example of Non - renewable natural resources is -
A) Solar energy B) Minerals
C) Wind energy D) Tidal energy
vi) ^maV ‘| nhbm BH$mo-‘mH©$ {H$g H$ånZr H$mo {‘bm Wm? [½]
A) JmoXaoO ~) ~OmO
g) ~mQ>m X) Q>mQ>m
Which company got the first Eco - Mark in India?
A) Godrej B) Bajaj
C) Bata D) Tata
vii) gm¡a D$Om© H$m {Z‘m©U {H$g {H«$¶m Ho$ n[aUm‘ñdê$n hmoVm h¡? [½]
A) ݶyp³bAa {dI§S>Z ~) {d{H$aU CËgO©Z
g) ݶyp³bAa g§b¶Z X) CnmnM¶r {H«$¶m
Solar energy is produced as a result of which process?
A) Nuclear Fission B) Radiation Emission
C) Nuclear Fusion D) Metabolic Reaction
viii) h[aV àm¡Úmo{JH$s H$m à¶moJ {ZåZ ‘| go {H$g {H«$¶m ‘| Zht hmoVm h¢? [½]
A) D$Om© g§ajU ~) Ob g§ajU
g) àXÿfU {Z¶§ÌU X) qgMmB© {dñVma
Green technology is not used in which of the following activities?
A) Energy conservation B) Water conservation
C) Pollution control D) Irrigation expansion
ix) nwZar{jV amï´>r¶ dZ Zr{V (NFP) {H$g gZ² ‘| bmJy hþB© Wr? [½]
A) 1972 ~) 1980
g) 1988 X) 2008
In which year was the revised National Forest Policy (NFP) implemented?
A) 1972 B) 1980
C) 1988 D) 2008

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x) {ZåZ{b{IV ‘| go VrZ ‘R’ g§H$ënZm h¡& [½]
A) H$‘ H$aZm ~) nwZ: Cn¶moJ
g) nwZ: MH«$U X) Cnamoº$ g^r
The following are three ‘R’ concepts.
A) Reduce B) Reuse
C) Recycle D) All of the above
xi) ñQ>m°H$hmo‘ gå‘obZ ‘| {MañWm¶r H$m~©{ZH$ àXÿfH$m| (POPs) ‘| “B” loUr ‘| AmZo dmbo àXÿfH$ H$m
CXmhaU h¡ - [½]
A) ³bmoaoS>oZ ~) Q>m°³gm{’$Z
g) DDT X) EpëS´>Z
This is an example of a pollutant category “B” in the stockholm convention
on Persistent Organic Pollutants (POPs).
A) Chlordane B) Toxaphene
C) DDT D) Aldrin
xii) dݶ Ord (g§ajU) A{Y{Z¶‘, 1972 ‘| {H$VZr YmamE± h¢? [½]
A) 26 ~) 66
g) 54 X) 75
How many sections are in the Wildlife Protection Act, 1972?
A) 26 B) 66
C) 54 D) 75
xiii) R>mog H$Mam à~§YZ H$m A§{V‘ MaU h¡& [½]
A) {ZñVmaU ~) ^ÊS>maU
g) CËnmXZ X) n[adhZ
The final stage of solid waste management is -
A) Disposal B) Storage
C) Generation D) Transportation
xiv) AO¡d{ZåZrH$aUr¶ H$Mao H$m CXmhaU h¡& [½]
A) ßbmpñQ>H$ ~moVb ~) H$mJO
g) H$mð> X) ’$bm| Ho$ {N>bHo$
An example of Non - biodegradable wastes is -
A) Plastic bottle B) Paper
C) Wood D) Peels of fruits

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xv) H|$MwAm| H$mo n¥Ïdr H$s Am§V VWm ‘¥Xm Cd©aH$Vm H$mo nwZ: àmá H$aZo dmbo EOoÝQ> H$hZo dmbo d¡km{ZH$ H$m¡Z Wo?
[½]
A) S>m°. AmZÝX ‘mohZ ~) AañVy
g) Mmëg© S>m{d©Z X) E‘. Eg. ñdm‘rZmWZ
Who was the scientist who called the earthworm, intestine of earth and agents
restore the soil fertility?
A) Dr. Anand Mohan B) Aristotle
C) Charles Darwin D) M.S. Swaminathan
xvi) amOñWmZ ‘| ""g[añH$m ~mK n[a¶moOZm'' Ho$ g§ajU Ho$ {bE {H$¶m J¶m Am§XmobZ Wm? [½]
A) ApßnH$mo AmÝXmobZ ~) em§V KmQ>r AmÝXmobZ
g) Aamdbr ~MmAmo AmÝXmobZ X) Z‘©Xm ~MmAmo AmÝXmobZ
It was a movement for the conservation of “Sariska Tiger Project” in Rajasthan.
A) Appiko movement B) Silent Valley movement
C) Save the Aravali movement D) Save the Narmada movement
xvii) {ZåZ{b{IV ‘| go {H$g d¥j H$mo X‘mZmeH$, VWm amoJ à{VamoYH$ j‘Vm ~‹T>mZo dmbm ‘mZm J¶m h¡? [½]
A) Am‘ ~) nrnb
g) IoOS‹ >r X) Ho$bm
Which of the following tree is considered to be a antiasthmatic and increase
the immunity.
A) Mango B) Peepul
C) Khejdi D) Banana
xviii) Oå^oída ‘hmamO Ho$ AZw¶m¶r {H$VZo {Z¶‘m| Ho$ AZwê$n OrdZ OrVo h¢? [½]
A) 20 ~) 25
g) 29 X) 39
How many rules do the followers of Jambheshwar Maharaj follow in their
lives?
A) 20 B) 25
C) 29 D) 39

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2) [a³V ñWmZm| H$s ny{V© H$s{OE :
Fill in the blanks :
i) O3 naV ............. {d{H$aUm| Ho$ AdemofU Ûmam g‘Vmn‘ÊS>b H$mo J‘© H$aVr h¡& [½]
The O3 layer warms the stratosphere by absorbing _______ radiation.
ii) grgo Ho$ A§V: ídgZ go hr‘mo½bmo{~Z {Z‘m©U H$‘ hmo OmVm h¡, {Oggo ............ amoJ hmo OmVm h¡& [½]
Due to inhalation of lead, hemoglobin production gets reduced which leads
to _______ disease.
iii) ³¶moQ>mo àmoQ>moH$m°b Ho$ VhV CDM dh AÝVam©ï´>r¶ Ho«${S>Q> {H«$¶m{d{Y h¡ {Oggo AÝVam©ï´>r¶ ñVa na
............... J¡g Ho$ {ZñgaU H$mo H$‘ H$aZo H$s AZwnmbZm na gh‘{V hþB© h¡& [½]
The CDM is an international credit mechanism under the Kyoto Protocol that
provides an international agreed upon contribution to reducing ______ gas
emissions.
iv) ’$moQ>modmoëQ>mBH$ gm¡a noZëg .................. d¡ÚwV CËnÞ H$aVo h¢& [½]
Photovoltaic solar panels produce _______ electricity.
v) ............ à{H«$¶m ‘| H$m~©{ZH$ nXmWm] H$mo hþ‘g H$s Vah Ho$ nXmWm] ‘| n[ad{V©V H$a {X¶m OmVm h¡& [½]
In the _______ process, organic matter is converted into a humus like
substance.
vi) ................ ‘| àmW{‘H$ ê$n go gyú‘Ordm| H$s g{H«$¶Vm go n¶m©daU H$mo g§Xÿ{fV H$aZo dmbo nXmWm] H$mo
AnKQ>Z Ûmam H$‘ {df¡bo ê$n ‘| ~Xb {X¶m OmVm h¡& [½]
______ involves the degradation of substances that is contaminated to
environment into less toxic forms, primarily by the activity of microorganisms.
vii) .............. BªYZ n¥Ïdr ‘| X~o hþE AnK{Q>V nm¡Ym| d OmZdam| go ~ZVm h¡& [½]
________ fuels are formed from decaying plants and animals buried in the
Earth.
viii) ^yJ^uH$ {H«$¶mAm| Ho$ n[aUm‘ñdê$n K{Q>V hmoZo dmbr AmnXmAm| H$mo ................... àH$ma H$s AmnXm
H$hVo h¢& [½]
Disasters that occur as a result of geological activities are called ______ type
of disasters.
ix) ............ Ob g§ajU H$s naånamJV {d{Y¶m| ‘| EH$ ~hþCÔoer¶ ì¶dñWm h¡& [½]
_______ is a multipurpose system of water harvesting in traditional methods.
x) ................ {H$gr joÌ {deof ‘| AmZo dmbr àmH¥${VH$ AmnXm go dhm§ Ho$ bmoJm| Ho$ OmZ-‘mb H$s ajm
H$aZo H$m ì¶mnH$ {Z¶moOZ h¢& [½]
________ is a comprehensive planning to protect the lives and property of
people in a particular area from natural disasters.

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3) A{VbKwÎmamË‘H$ àíZ : {ZåZ{b{IV àíZm| Ho$ CÎma EH$ eãX ¶m EH$ n§{º$ ‘| {b{IE&
Very short answer type questions : Answer the following question in one word or
one line.

i) O¡d {ZåZrH$aUr¶ àXÿfH$ H$mo n[a^m{fV H$s{OE& [1]
Define biodegradable pollutants.
ii) Üd{Z àXÿfU {Z¶§ÌU H$m EH$ Cnm¶ {b{IE& [1]
Write one measure to control noise pollution.
iii) Ob ‘| ZmBQ´>oQ> H$s A{YH$ ‘mÌm hmoZo go CËnÞ amoJ H$m Zm‘ {b{IE& [1]
Write the name of the disease caused due to excessive amount of nitrate in
water.
iv) “MoEF” H$m nyam Zm‘ {b{IE& [1]
Write full name of “MoEF”.
v) AZwÀN>oX 51-A Ho$ {H$gr EH$ ‘yb^yV H$Îm©ì¶ H$mo {b{IE& [1]
Write any one fundamental duty of Article 51-A.
vi) dݶ Ord (g§ajU) A{Y{Z¶‘ {H$g gZ² ‘| bmJy {H$¶m J¶m Wm? [1]
The Wildlife (Protection) Act was enacted in which year?
vii) g‘pÝdV noñQ> à~§YZ H$mo n[a^m{fV H$s{OE& [1]
Define Integrated Pest Management.
viii) H|$MwAm {H$g ’$mBb‘ go g§~§{YV h¡? [1]
Earthworm related to which phylum?
ix) ~m‹T> Ho$ à^md H$mo H$‘ H$aZo H$mo H$moB© EH$ Cnm¶ {b{IE&> [1]
Write any one measure to reduce the impact of floods.
x) O¡{dH$ AmnXm H$m EH$ CXmhaU {b{IE& [1]
Write one example of biological disaster.

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9
IÊS - ~
SECTION - B

bKwÎmamË‘H$ àíZ (CÎma eãX gr‘m bJ^J 30 eãX) :
Short answer type questions (Answer word limit approx 30 words) :

4) àXÿfU H$s amoH$Wm‘ hoVw ì¶{º$JV ñVa na {H$E OmZo dmbo à¶mgm| H$mo {b{IE& [1½]
Write the efforts to be made at personal level to prevent pollution.

5) h[aV n{Å>H$mAm| H$m EH$ bm^ g‘PmBE& [1½]
Explain one advantage of green belt.

6) ""BH$mo-‘mH©$'' à‘mUrH$aU H$m H$moB© EH$ ‘mnX§S> {b{IE& [1½]
Write any one criteria for Eco - Mark certification.

7) dm¶w D$Om© Ho$ Cn¶moJ go hmoZo dmbm EH$ bm^ g‘PmBE& [1½]
Explain one advantage of using wind energy.

8) Ob (àXÿfU {ZdmaU VWm {Z¶§ÌU) A{Y{Z¶‘ H$m ‘w»¶ CÔoí¶ {b{IE& [1½]
Write the main objective of Water (Pollution Prevention and Control) Act.

9) Üd{Z ‘mnZo H$s BH$mB© {b{IE& AñnVmbm|, e¡{jH$ g§ñWmAm| Am¡a ݶm¶mb¶m| Ho$ Amgnmg {H$VZo ‘rQ>a Ho$ joÌ
H$mo em§V joÌ Kmo{fV {H$¶m OmVm h¡? [1+½=1½]
Write the unit of measuring sound. How many meters area around hospitals,
educational institutions and courts is declared as silent zone?

10) Or.E‘. ’$gbm| H$mo BH$mo’«o$ÝS>br ³¶m| H$hm OmVm h¡ H$maU Xr{OE& [1½]
Give reason why G.M. crops are called ecofriendly.

11) d‘© H$mpñQ>¨½g H$m EH$ Cn¶moJ {b{IE& [1½]
Write one use of worm casting.

12) ""Z‘©Xm AmÝXmobZ'' H$m ‘w»¶ CÔoí¶ ³¶m Wm? [1½]
What is the main objective of “Narmada movement”?

13) amOñWmZ ‘| dfm© Ob g§ajU H$s {H$Ýht VrZ naånamJV {d{Y¶m| Ho$ Zm‘ {b{IE& [½+½+½=1½]
Write any three names of traditional methods of rain water conservation in Rajasthan.

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IÊS> - g
SECTION - C

XrK© CÎmar¶ àíZ (CÎma eãX gr‘m bJ^J 60 eãX) :
Long answer type questions (Answer word limit approx 60 words) :

14) ""O¡d g§Ho$VH$'' H$mo n[a^m{fV H$s{OE d BgH$mo EH$ CXmhaU Ûmam g‘PmBE& [1+2=3]
Define "Bioindicators" and explain it by one example.
AWdm/OR
O¡d amgm¶{ZH$ Am°³grOZ ‘m±J (BOD) H$mo n[a^m{fV H$s{OE& BgHo$ ‘hÎd H$mo g‘PmBE&
Define Biochemical Oxygen Demand (BOD). Explain its importance.

15) An{eï> Ob CnMma H$s dm¶dr¶ CnMmaU O¡{dH$ {d{Y H$mo {MÌ Ûmam g‘PmBE& [1+2=3]
Explain with the help of diagram the biological method aerobic treatment of waste
water treatment.
AWdm/OR
R>mog H$Mam {ZñVmaU hoVw AnZm¶o OmZo dmbo {dH$ën gm‘wXm{¶H$ J‹S>T>o H$m g{MÌ dU©Z H$[aE&
Describe with diagram of community pits adopted for alternative for solid waste
disposal.

16) {MnH$mo AmÝXmobZ H$m¡Z-go amÁ¶ ‘| àmaå^ hþAm Wm? {MnH$mo AmÝXmobZ H$m à^md g‘PmBE& [1+2=3]
In which state did the Chipko Movement started? Explain the effect of Chipko
Movement.
AWdm/OR
gyIo Ho$ àH$ma {b{IE& gyIo Ho$ à^md g‘PmBE&
Write types of drought. Explain effects of droughts.

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11

IÊS> - X
SECTION - D

{Z~§YmË‘H$ àíZ (CÎma eãX gr‘m bJ^J 120 eãX) :
Essay type questions (Answer word limit approx 120 words) :

17) ""dm¶w àXÿfU'' H$mo n[a^m{fV H$s{OE& dm¶w àXÿfH$m| Ho$ ñÌmoVm| H$mo g‘PmBE& [1+3=4]

Define air pollution. Explain sources of air pollutants.

AWdm/OR

""Ob àXÿfU'' H$mo n[a^m{fV H$s{OE& Ob àXÿfU Ho$ ñÌmoV ¶m H$maU H$mo g‘PmBE&

Define water pollution. Explain sources or causes of water pollution.

18) dZ (g§ajU) A{Y{Z¶‘ Ho$ ‘w»¶ CÔoí¶ Ed§ {deofVmE§ g‘PmBE& [4]

Explain the main objectives and features of the Forest (Conservation) Act.

AWdm/OR

""‘mopÝQ´>¶b g§boI'' H$s eV} Am¡a CÔoí¶ g‘PmBE&

Explain terms and purposes of “Montreal Protocol”.



SS– 61–EVS 7037

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