Rajasthan Board Class 12 Question Paper 2023 Environmental Science

Rajasthan Board

QUESTION
PAPER

Zm_m§ H $ Roll No.

Tear Here
Sl.No. :

No. of Questions – 20
No. of Printed Pages – 11
SS–61–EVS

Cƒ _mÜ`{_H$ narjm, 2023
SENIOR SECONDARY EXAMINATION, 2023
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

SS–61–EVS 3032 [ Turn Over

2

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 3032

3
IÊS> - A
SECTION - A

1) {ZåZ{b{IV ~hþ{dH$ënr¶ àíZm| Ho$ CÎma, CÎma-nwpñVH$m ‘| {b{IE&
Write the answers of the following multiple choice questions in answer-book.

i) {ZåZ{b{IV ‘| go {ÛVr¶H$ dm¶w àXÿfH$ H$m CXmhaU h¡& [1]

A) SO 2 ~) H2 S

g) CO X) naAm°³grEgrQ>mBb ZmBQ´>oQ (PAN)>

Which of the following is an example of secondary air pollutant?

A) SO 2 B) H2 S

C) CO D) Peroxyacetylnitrate (PAN)

ii) E³g {H$aUm| Ho$ {d{H$aU H$s BH$mB© h¢& [1]

A) ³¶war ~) am°ÝOZ

g) a¡S> X) S>ogr~b

The unit of radiation of X rays.

A) Curie B) Roentgen

C) Rad D) Decibel

SS–61–EVS 3032 [ Turn Over

4
iii) {ZåZ{b{IV ‘| go VrZ 'R' g§H$ënZm h¢& [1]

A) H$‘ H$aZm ~) nwZ: Cn¶moJ

g) nwZ: MH«$U X) Cnamoº$ g^r

Three of the following are 'R' concepts

A) Reduce B) Reuse

C) Recycle D) All of the above

iv) {ZåZ{b{IV ‘| go ^maV H$m AJ«Ur gm¡a D$Om© CËnmXH$ amÁ¶ h¢& [1]

A) {~hma ~) amOñWmZ

g) ‘ܶàXoe X) {X„r

Which of the following is India's Leading Solar Power Producer?

A) Bihar B) Rajasthan

C) Madhya Pradesh D) Delhi

v) {ZåZ{b{IV ‘| go g§{dYmZ Ho$ {H$g AZwÀN>oX ‘| n¶m©daU g§ajU Ho$ {bE ì¶dñWm H$s JB© h¢& [1]

A) 48 A ~) 64 A

g) 60 A X) 140 A

Which of the following articles of the constitution also provide for environment
protection?

A) 48 A B) 64 A

C) 60 A D) 140 A

SS–61–EVS 3032

5
vi) ‘mopÝQ´>¶b g§boI {H$ggo gå~pÝYV h¡? [1]
A) Am°³grOZ ~) gm¡a D$Om©
g) dm¶w D$Om© X) AmoO
µ moZ
What is the Montreal protocol related to?
A) Oxygen B) Solar energy
C) Wind energy D) Ozone
vii) R>mog H$Mao H$m CXmhaU h¢? [1]
A) ½bmg ~) ßbmpñQ>H$
g) H$mð> X) Cnamoº$ g^r
What is an example of solid waste?
A) Glass B) Plastic
C) Wood D) All of the above
viii) {ZåZ{b{IV ‘| go Ob g§J«hU H$s {d{Y h¢? [1]
A) Zm‹S>r ~) Omoh‹S>
g) Vmbm~ X) Cnamoº$ g^r
Which of the following is the method of water harvesting?
A) Nadi B) Johad
C) Pond D) All of the above
ix) {ZåZ{b{IV ‘| go O¡d g§gmYZ H$m CXmhaU h¢? [1]
A) OÝVw ~) hdm
g) I{ZO X) noQ´>mob
Which of the following is an example of Biological resource?
A) Animal B) Air
C) Minerals D) Petrol

SS–61–EVS 3032 [ Turn Over

6

2) [a³V ñWmZm| H$s ny{V© H$s{OE :
Fill in the blanks :

i) OmnmZ pñWV EH$ OñVm n[aîH$aU g§¶§Ì Ho$ An{eï> nXmWm] go {ZH$bZo dmbo ............. Ûmam
BVmB©-BVmB© amoJ ~hþV ì¶mnH$ hþAm Wm& [1]

Itai-Itai disease caused by ________ released from the waste products of a
Zinc refining plant in Japan.

ii) ñQ>mH$hmo‘ gå‘obZ ‘| POPs ‘| 12 agm¶Z ............ lo{U¶m| ‘| gpå‘{bV {H$¶o Wo& [1]

In the Stockhom conference 12 chemicals were included in POPs in ______
categories.

iii) OrZmo~m¶mo{Q>H$ ¶m¡{JH$ (nXmW©) ‘Zwî¶ Ûmam ~Zm¶o J¶o ............... h¢ Omo O¡d‘ÊS>b Ho$ {bE ~mhar h¡&
[1]

Xenobiotic compounds are man-made _______ that are foreign to the
biosphere.

iv) ................. AmH$pñ‘H$ A§VOm©V ~b Ho$ H$maU hmoZo dmbr EH$ à‘wI àmH¥${VH$ AmnXm h¢& [1]

________ is a major natural disaster caused by sudden endogenous force.

SS–61–EVS 3032

7

3) {ZåZ àíZm| Ho$ CÎma EH$ eãX AWdm EH$ n§{º$ ‘| {b{IE :

Answer the following questions in one word or in a line :

i) ídgZr¶ {Zbpå~V H$Ur¶ nXmW© H$mo n[a^m{fV H$s{OE& [1]

Define Respirable Suspended Particulate Matter.

ii) ZdrZrH$aU g§gmYZ H$m EH$ CXmhaU {b{IE& [1]

Write an example of renewal resource.

iii) Ob àXþfU {ZdmaU VWm {Z¶ÝÌU A{Y{Z¶‘ H$s EH$ {deofVm {b{IE& [1]

Write one feature of Water Prevention and Control of Pollution Act.

iv) dm¶w àXþfU {ZdmaU VWm {Z¶ÝÌU A{Y{Z¶‘-1981 ‘| {H$VZr YmamE§ h¢? [1]

How many sections are there in Air Prevention and Control of Pollution Act-1981.

v) AmZwd§{eH$s¶ ê$nmÝV[aV Ord H$m EH$ CXmhaU {b{IE& [1]

Write an example of Genetically Modified Organism.

vi) ßbmpÁ‘S> H$m EH$ Cn¶moJ {b{IE& [1]

Write one use of Plasmid.

vii) Aåb dfm© {H$go H$hVo h¡? [1]

What is acid rain?

viii) dZm| ‘| bJZo dmbr AmJ H$mo ³¶m H$hm OmVm h¡? [1]

What is forest fire called?

SS–61–EVS 3032 [ Turn Over

8
IÊS - ~
SECTION - B

bKwCÎmar¶ àíZ (CÎma eãX gr‘m 25 eãX) :
Short answer type questions (Answer word limit is 25 words) :

4) ^y{‘ àXÿfU {Z¶ÝÌU Ho$ VrZ Cnm¶ {b{IE& [½+½+½=1½]

Write three measures to control soil pollution.

5) dm¶w àXþfH$ Ho$ VrZ CXmhaU Xr{OE& [½+½+½=1½]

Give three examples of air pollutants.

6) {d{H$aU Ho$ nm[apñWVrH$ VÝÌ na à^md H$mo g‘PmBE& (H$moB© VrZ) [½+½+½=1½]

Explain ecosystem level effects of Radiation. (Any three)

7) àXþ{fV Ob J«hU H$aZo go CËnÞ hmoZo dmbo VrZ amoJm| Ho$ CXmhaU Xr{OE& [½+½+½=1½]

Give examples of three diseases caused by consuming polluted water.

8) O¡{dH$ AmnXm Ho$ CXmhaU {b{IE& (H$moB© VrZ) [½+½+½=1½]

Write examples of biological disaster. (Any three)

9) ^maVr¶ ‘mZH$ ã¶wamo Ho$ H$m¶© H$mo g‘PmBE& (H$moB© VrZ) [½+½+½=1½]

Explain the function of Bureau of Indian Standards (BIS). (Any three)

SS–61–EVS 3032

9
10) Üd{Z àXþfU ({Z¶‘Z Ed§ {Z¶§ÌU {Z¶‘) 2000 H$s VrZ {deofVmE§ {b{IE& [½+½+½=1½]

Write three characteristics of Noise Pollution (Regulation and Control Rules 2000).

11) Ob A{Y{Z¶‘ H$s VrZ {deofVmE§ {b{IE& [½+½+½=1½]

Write three features of Water Act.

12) AmZwd§{eH$s¶ ê$nmÝV[aV Ordm| Ho$ VrZ bm^ {b{IE& [½+½+½=1½]

Write three advantages of Genetically modified organism.

13) gwna~J OrdmUw H$s ImoO {H$g d¡km{ZH$ Zo H$s? BgH$m ‘hÎd g‘PmBE& [1+½=1½]

Which scientist discovered the superbug bacteria? Explain its importance.

14) ^yH$ån Ho$ {dÜd§gH$mar à^md H$mo g‘PmBE& (H$moB© VrZ) [½+½+½=1½]

Explain the destructive effects of an earthquake. (Any three)

15) ~§Oa ^y{‘ gwYma Ho$ VrZ Cnm¶ {b{IE& [½+½+½=1½]

Write three measures to improve Barren Land.

SS–61–EVS 3032 [ Turn Over

10

IÊS> - g
SECTION - C

XrK© CÎmar¶ àíZ (CÎma eãX gr‘m 50 eãX) :

Long answer type questions (Answer word limit is 50 words) :

16) h[aV n{Å>H$mAm| Ho$ Cn¶moJ go hmoZo dmbo VrZ bm^ g‘PmBE& [1+1+1=3]

Explain three advantages of using green belts.

17) g§{dYmZ Ho$ AZwÀN>oX 51-A Ho$ VhV AmZodmbo ‘yb H$Îm©ì¶mo H$mo g‘PmBE& (H$moB© VrZ) [1+1+1=3]

Explain the fundamental duties under Article 51-A of constitution. (Any three)

18) amOñWmZ ‘| dfm©Ob g§ajU H$s H$moB© VrZ naånamJV {d{Y¶m| H$mo g‘PmBE& [1+1+1=3]

Explain any three traditional methods of rainwater conservation in Rajasthan.

SS–61–EVS 3032

11

IÊS> - X
SECTION - D

{Z~§YmË‘H$ àíZ (CÎma eãX gr‘m 100 eãX)
Essay type questions (Answer word limit is 100 words)

19) dm¶w àXÿfU Ho$ Xmo ‘w»¶ ñÌmoVmo H$mo g‘PmBE& O¡d AmdY©Z Ho$ ’$bñdê$n ImÚ l§¥Ibm Ho$ A§{V‘ nmofU ñVa ‘|
H$sQ>Zmer agm¶Zm| Ho$ ~T>Vo gmÝÐU H$mo àX{e©V H$aZo dmbm aoIm{MÌ ~ZmBE& [2+2=4]
Explain two main sources of air pollution. Draw graph showing the increasing
concentration of pesticide chemicals at the end trophic level of food chain as a
result of biomagnification.
AWdm/OR
O¡d g§Ho$VH$ H$mo CXmhaU g{hV g‘PmBE& (H$moB© Xmo) Ob àXþfU Ho$ ñÌmoV H$mo àX{e©V H$aZo dmbm aoIm{MÌ
~ZmBE&
Explain Bioindicators with examples (Any two). Draw a diagram showing the
sources of water pollution.

20) g‘pÝdV noñQ> à~ÝYZ VH$ZrH$ amoH$Wm‘/{Z¶ÝÌU H$s Mma VH$ZrH$m| H$mo aoIm{MÌ ~ZmH$a {dñVma go g‘PmBE&
[2+2=4]
With the help of diagram explain in detail the four techniques of integrated pest
management.
AWdm/OR
R>mog H$Mam {ZñVmaU hoVw AnZm¶o OmZo dmbo {dH$ën gm‘wXm{¶H$ JS²>T>o H$m g{MÌ dU©Z H$[aE&
Describe with diagram of community pits adopted for alternative for solid waste
disposal.



SS–61–EVS 3032

RE
E
H
NG
I
TH
NY
A
TE
RI
W
O T
N
DO