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Karnataka 8th Model Question Paper 2023 Science

Get here Karnataka 8th Model Question Paper 2023 pdf for Science. Download KSEAB 8th Class Science Sample Paper 2023 here. More Detail
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Karnataka 8th Model Question Paper 2023 Science – Text

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Page 1

Karnataka Board

SAMPLE
PAPER


2023

Page 2

PÀ£ÁðlPÀ ±Á¯Á ¥ÀjÃPÉë ªÀÄvÀÄÛ ªÀiË®å¤tðAiÀÄ ªÀÄAqÀ°
PÉJ¸ïPÀÄåJJ¹, ªÀįÉèñÀégÀA, ¨ÉAUÀ¼ÀÆgÀÄ-560003.
KARNATAKA SCHOOL EXAMINATION AND ASSESSMENT BOARD
KSQAAC, Malleshwaram, Bengaluru-560003.
ªÀi˯ÁåAPÀ£À - ªÀiÁZïð 2023 - ªÀiÁzÀj ¥Àæ±ÉÆßÃvÀÛgÀ ¥ÀwæPÉ
Assessment - March 2023 Model Paper
Subject : Science Marks : 40
Class : 8 Medium : English Time : 2 Hours
Information to be filled by the Student
Name of the Student : _____________________________________________________________

Student SATS No : Signature
of the Student :________________

Information to be filled by the Room Invigilator
School DISE Code :

School Name :____________________________________________________________________

Cluster :__________________ Block :______________________ District :__________________
School Type : Govt. Aided Un-aided
(Put “” mark for applicable information)
Signature of the Room Invigilator : ______________________
Information to be filled by the Evaluator at the time of evaluation
Question Obtained Question Obtained Question Obtained
Number marks Number marks Number marks
1 11 21
2 12 22
3 13 23
4 14 24
5 15 25
6 16 26
7 17 27
8 18 28
9 19 -
10 20 -
Total marks Total marks Total marks
Grand Total

Total marks obtained (in words) :____________________________________________________
Signature of the Evaluator : _______________________
Name of the Evaluator : _______________________

Page 3

2
I Four alternatives are given for each of the following questions/
incomplete statements. Choose the correct alternative and write the
complete answer along with the correct option for question numbers
1 to 20. 20 x 1 = 20

1. The following picture represents,

A. Concave mirror B. Concave lens
C. Convex lens D. Convex mirror

Answer: ____________________

2. The red planet in the solar system
A. Earth B. Mars C. Jupiter D. Neptune

Answer: ____________________

3. The mirror used by a vehicle driver to see the vehicles coming from behind
and its property is,
A. Convex mirror, converge light.
B. Concave mirror, diverge light.
C. Plane mirror, image appears clearly.
D. Irregular mirror, distant objects appear clearly.

Answer: ____________________

Page 4

3
4. The comet appears to have a bright head and a long tail. Because it's,

A. tail grows longer as it approaches the Sun
B. tail grows longer as it approaches the Moon
C. movement become slow as it reach the earth
D. orbital period around the sun is very short

Answer: _______________________________________________

5. Fisherman residing near the sea shore are informed about the warning given
by the meteorological department by a radio station to not to go to sea for
the next 3 days due to extreme weather condition. The celestial body which
provide this information to the meterological department is,

A. Meteor B. Moon
C. Comet D. Artificial satellite

Answer: ____________________

6. A student is observing sky at night. Imagines that when line is drawn
between stars of a constellation the formed structure appears as a hunter.
The constellation is,

A. Great bear B. Orion / hunter
C. Cassiopeia D. Leo major

Answer: ____________________

[ Turn over

Page 5

4
7. The activity given below is good for eyes

A. Reading books in dim light
B. Rubbing the eyes when dust particles enter
C. Not to see the Sun or intense light through naked eyes
D. Reading book from shortest distance

Answer: ____________________

8. A white light ray passes through a prism and disperse into 7 different
colours. The reason for this phenomenon is,

A. Refraction of light B. Convergent of light
C. Polarisation of light D. Interference of light

Answer: ____________________

9. Identify the combustible substance among the following

A. Stone B. Glass
C. Dry grass D. Iron nail

Answer: ____________________

10. The best conductor of electricity among the following

A. Copper wire B. Steel pin
C. Iron nail D. Magnesium wire

Answer: ____________________

Page 6

5
11. Identify this phenomenon,

A. Waves B. Storm
C. Lightning D. Earthquake

Answer: ____________________

12. The material that takes more time to ignite among the following

A. Wooden log B. Sodium
C. Paper D. Cooking gas

Answer: ____________________

13. Students on a trip observe a metal rod taller than the head of idol of
Gomateshwara in Shravanabelagola. The function of this metal rod is to,

A. produce electricity from lightning
B. increase the amount of lightning
C. protect the idol from lightning
D. reflect the light to the idol

Answer: ____________________
[ Turn over

Page 7

6
14. Teacher instructs the students not to take out the sodium stored under
kerosene in laboratory. Because sodium in air,

A. Evaporates B. Burns rapidly
C. Burns slowly D. Dissolves

Answer: ____________________

15. This is called the ''living substance'' of the cell

A. Nucleus B. Cell wall
C. Protoplasm D. Cytoplasm

Answer: ____________________

16. The type of asexual reproduction in the given diagram is,
Daughter
Dividing nucleus amoebae

A. Budding B. Binary fission
C. Fragmentation D. Vegetative

Answer: ____________________

Page 8

7
17. Suggestion given by the doctor to maintain personal hygiene is to,

A. Intake nutritional food B. Do physical exercise
C. Intake medicines D. Take bath daily

Answer: ____________________

18. A boy comes to know from the teacher that the adult frogs emerge out from
the tadpoles which can jump and swim. The reason for this process is

A. Metamorphosis

B. Internal fertilisation

C. External fertilisation

D. Budding

Answer: ____________________

19. A conscious customer purchases an electric car instead of petrol and diesel
car. The reason behind this is

A. Cost is low
B. Produce loud noise while driving
C. Can drive with high speed
D. Does not cause air pollution

Answer: ____________________

Page 9

8
20. While watching the news in television, a student gets information about the
steps taken to decrease the global warming. One of the possible action is,

A. Use of public transport, alternate source of energy.
B. Using fossil fuels.
C. Importance to use personal vehicles.
D. Using maximum glass windows in multi storage buildings.

Answer: ____________________

II. Answer questions 21 to 28 in the space provided.

21. What is air pollution? Give any two reasons for air pollution. 2 Marks

Or
What is smog? How is smog produced ?

Page 10

9
22. Which hormone starts to secret in girls when reach the adolescence period.
Write any one function of it. 2 Marks

Or
Write any two characteristics in the mental health development of
adolescents?

23. What is an Earthquake? Name any two areas in India that fall under the
danger-zone. 2 Marks

Or
Name the scale used to measure the magnitude of Earthquake. What should
be the required measurement of the scale to cause destructions?

[ Turn over

Page 11

10
24. Which is the best extinguisher used to extinguish the rapidly combustible
fuel like petrol? Why is that extinguisher used? 2 Marks

Or
Write any three scientific factors which support an object to burn.

25. Draw a ray diagram which shows the angle of reflection when the angle of
incidence is 40°. 2 Marks

Or
Draw a diagram that shows the incidence and reflection of light rays falling
on a irregular surface.

Page 12

11
26. Generally, the cycle rims are coated with chromium. Give 3 reasons for this.
3 Marks

Or
"Now-a-days the iron bridges are long lasting". Justify this sentence.

[ Turn over

Page 13

12
27. In the solar system, name the only planet in which life exists. List out the
supporting factors responsible for the existence of life on that planet.
3 Marks

Or
Which are the outermost planets in the solar system? Write any one
characteristic of any two planets.

28. Draw the diagram of a plant cell and label the following parts. 4 Marks
(I) Cell wall
(ii) Nucleus
(iii) Vacuole
(iv) The organelle that carries out photosynthesis

Page 14

PÀ£ÁðlPÀ ±Á¯Á ¥ÀjÃPÉë ªÀÄvÀÄÛ ªÀiË®å¤tðAiÀÄ ªÀÄAqÀ°
PÉJ¸ïPÀÄåJJ¹, ªÀįÉèñÀégÀA, ¨ÉAUÀ¼ÀÆgÀÄ-560003.
KARNATAKA SCHOOL EXAMINATION AND ASSESSMENT BOARD
KSQAAC, Malleshwaram, Bengaluru-560003.
ªÀi˯ÁåAPÀ£À - ªÀiÁZïð 2023 - ªÀiÁzÀj ¥Àæ±ÉÆßÃvÀÛgÀ ¥ÀwæPÉ
Assessment - March 2023 Model Paper
«µÀAiÀÄ : «eÁÕ£À CAPÀUÀ¼ÀÄ : 40
vÀgÀUÀw : 8 ªÀiÁzsÀåªÀÄ : PÀ£ÀßqÀ ¸ÀªÀÄAiÀÄ : 2 UÀAmÉ
«zÁåyðUÀ¼ÀÄ ¨sÀwð ªÀiÁqÀ¨ÉÃPÁVgÀĪÀ ªÀiÁ»w
«zÁåyðAiÀÄ ºÉ¸ÀgÀÄ : _____________________________________________________________________

«zÁåyðAiÀÄ SATS ¸ÀASÉå : «zÁåyðAiÀÄ ¸À» :_______________

PÉÆoÀr ªÉÄðéZÁgÀPÀgÀÄ ¨sÀwð ªÀiÁqÀ¨ÉÃPÁVgÀĪÀ ªÀiÁ»w
±Á¯ÉAiÀÄ qÉʸï PÉÆÃqï :

±Á¯ÉAiÀÄ ºÉ¸ÀgÀÄ :_________________________________________________________________________

PÀè¸ÀÖgï :______________________ ¨ÁèPï :_______________________ f¯Éè :_______________________
±Á¯ÉAiÀÄ «zsÀ : ¸ÀPÁðj C£ÀÄzÁ¤vÀ C£ÀÄzÁ£À gÀ»vÀ
(C£Àé¬Ä¸ÀĪÀ ªÀiÁ»wUÉ “” UÀÄgÀÄvÀÄ ºÁQj)
PÉÆoÀr ªÉÄðéZÁgÀPÀgÀ ¸À» :______________________________
ªÀiË®åªÀiÁ¥À£À ¸ÀªÀÄAiÀÄzÀ°è ²PÀëPÀgÀÄ ¨sÀwð ªÀiÁqÀ¨ÉÃPÁzÀ ªÀiÁ»w
¥Àæ±Éß ¸ÀASÉå ¥ÀqÉzÀ CAPÀUÀ¼ÀÄ ¥Àæ±Éß ¸ÀASÉå ¥ÀqÉzÀ CAPÀUÀ¼ÀÄ ¥Àæ±Éß ¸ÀASÉå ¥ÀqÉzÀ CAPÀUÀ¼ÀÄ
1 11 21
2 12 22
3 13 23
4 14 24
5 15 25
6 16 26
7 17 27
8 18 28
9 19 -
10 20 -
MlÄÖ CAPÀUÀ¼ÀÄ MlÄÖ CAPÀUÀ¼ÀÄ MlÄÖ CAPÀUÀ¼ÀÄ
MlÄÖ UÀ½¹zÀ CAPÀ

MlÄÖ UÀ½¹zÀ CAPÀUÀ¼ÀÄ (CPÀëgÀUÀ¼À°è)___________________________________________________________

ªÀiË®åªÀiÁ¥ÀPÀgÀ ¸À» : _______________________

ªÀiË®åªÀiÁ¥ÀPÀgÀ ºÉ¸ÀgÀÄ : _______________________

Page 15

2
I. 1 jAzÀ 20 gÀªÀgÉV£À ¥Àæ±ÉßUÀ½UÉ ¤ÃqÀ¯ÁVgÀĪÀ £Á®ÄÌ DAiÉÄÌUÀ¼À°è ¸ÀÆPÀÛªÁzÀ GvÀÛgÀªÀ£ÀÄß
Dj¹ ¤UÀ¢¥Àr¹gÀĪÀ ¸ÀܼÀzÀ°è PÀæªÀiÁPÀëgÀzÉÆA¢UÉ GvÀÛgÀªÀ£ÀÄß §gɬÄj. [20 × 1 = 20]

1. F PɼÀV£À avÀæªÀÅ ¥Àæw¤¢ü¸ÀÄwÛgÀĪÀÅzÀÄ,

A. ¤ªÀÄß zÀ¥Àðt B. ¤ªÀÄß ªÀĸÀÆgÀ
C. ¦Ã£À ªÀĸÀÆgÀ D. ¦Ã£À zÀ¥Àðt

GvÀÛgÀ: ____________________

2. ¸ËgÀªÀÄAqÀ®zÀ°è£À PÉA¥ÀÅ §tÚzÀ UÀæºÀ

A. ¨sÀÆ«Ä B. ªÀÄAUÀ¼À
C. UÀÄgÀÄ D. £É¥ÀÇÑ£ï

GvÀÛgÀ: ____________________

3. M§â ªÁºÀ£À ZÁ®PÀ£ÀÄ »A§¢AiÀÄ°è §gÀÄwÛgÀĪÀ ªÁºÀ£ÀUÀ¼À£ÀÄß PÁt®Ä §¼À¸ÀĪÀ zÀ¥Àðt
ªÀÄvÀÄÛ CzÀgÀ ®PÀët,

A. ¦Ã£À zÀ¥Àðt, ¨É¼ÀPÀ£ÀÄß PÉÃA¢æÃPÀj¸ÀÄvÀÛzÉ.
B. ¤ªÀÄß zÀ¥Àðt, ¨É¼ÀPÀ£ÀÄß «PÉÃA¢æÃPÀj¸ÀÄvÀÛzÉ.
C. ¸ÀªÀÄvÀ® zÀ¥Àðt, ©A§ªÀÅ ¸ÀàµÀÖªÁV PÁtÄvÀÛzÉ.
D. C¤AiÀÄvÀ zÀ¥Àðt, zÀÆgÀzÀ ªÀ¸ÀÄÛUÀ¼ÀÄ ¸ÀàµÀÖªÁV PÁtÄvÀÛªÉ.

GvÀÛgÀ: ____________________

Page 16

3
4. zsÀƪÀÄPÉÃvÀĪÀÅ ¥ÀæPÁ±ÀªÀiÁ£ÀªÁzÀ vÀ¯É ªÀÄvÀÄÛ GzÀÝ£ÉAiÀÄ ¨Á®ªÀ£ÀÄß ºÉÆA¢gÀĪÀAvÉ PÀAqÀÄ
§gÀÄvÀÛzÉ. KPÉAzÀgÉ,

A. ¸ÀÆAiÀÄð£À£ÀÄß ¸À«Äæ¸ÀÄwÛzÀÝAvÉ CzÀgÀ ¨Á®ªÀÅ GzÀݪÁV ¨É¼ÉAiÀÄÄvÀÛzÉ.
B. ZÀAzÀæ£À£ÀÄß ¸À«Äæ¸ÀÄwÛzÀÝAvÉ CzÀgÀ ¨Á®ªÀÅ GzÀݪÁV ¨É¼ÉAiÀÄÄvÀÛzÉ.
C. ¨sÀÆ«ÄAiÀÄ£ÀÄß vÀ®Ä¥ÀÄwÛzÀÝAvÉ CzÀgÀ ZÀ®£É ¤zsÁ£ÀªÁUÀÄvÀÛzÉ.
D. ¸ÀÆAiÀÄð£À ¸ÀÄvÀÛ EªÀÅUÀ¼À ¥Àj¨sÀæªÀÄt CªÀ¢üAiÀÄÄ Cw PÀrªÉÄAiÀiÁVgÀÄvÀÛzÉ.

GvÀÛgÀ: ____________________

5. gÉÃrAiÉÆÃ ¸ÀA¸ÉÜAiÉÆAzÀÄ ¸ÀªÀÄÄzÀæ ¥ÀæzÉñÀzÀ d£ÀjUÉ ºÀªÁªÀiÁ£À ªÉÊ¥ÀjvÀå PÀÄjvÀAvÉ
ªÀÄÄA§gÀĪÀ ªÀÄÆgÀÄ ¢£ÀUÀ¼ÀÄ ¸ÀªÀÄÄzÀæPÉÌ «ÄãÀÄUÁgÀgÀÄ vÉgÀ¼ÀzÀAvÉ ºÀªÁªÀiÁ£À E¯ÁSÉAiÀÄÄ
¤ÃrgÀĪÀ JZÀÑjPÉ ¸ÀAzÉñÀªÀ£ÀÄß ¥Àæ¸ÁgÀ ªÀiÁqÀÄvÀÛzÉ. F ªÀiÁ»wAiÀÄ£ÀÄß ºÀªÁªÀiÁ£À
E¯ÁSÉUÉ MzÀV¹zÀ DPÁ±ÀPÁAiÀÄ

A. G¯ÉÌ B. ZÀAzÀæ
C. zsÀƪÀÄPÉÃvÀÄ D. PÀÈvÀPÀ G¥ÀUÀæºÀ

GvÀÛgÀ: ____________________

6. «zÁåyðAiÉÆ§â£ÀÄ gÁwæ DPÁ±À «ÃQë¸ÀÄwÛzÁÝ£É. £ÀPÀëvÀæ ¥ÀÄAdªÉÇAzÀgÀ £ÀPÀëvÀæUÀ¼À £ÀqÀĪÉ
UÉgÉUÀ¼À£Éß¼ÉzÀAvÉ ¨sÁ«¹zÁUÀ GAmÁzÀ DPÀÈwAiÀÄÄ ¨ÉÃmÉUÁgÀ£ÀAvÉ PÁtĪÀÅzÀ£ÀÄß
PÀ°à¹PÉÆ¼ÀÄîvÁÛ£É. F £ÀPÀëvÀæ ¥ÀÅAd,

A. zÉÆqÀØ PÀgÀr B. ®Ä§ÝPÀ / ªÀĺÁªÁåzsÀ
C. PÁå¹ìAiÉÆÃ¦AiÀÄ D. ¹AºÀ ªÀÄAqÀ®

GvÀÛgÀ: ____________________

[ Turn over

Page 17

4
7. PɼÀV£ÀªÀÅUÀ¼À°è F ZÀlĪÀnPÉAiÀÄÄ PÀtÂÚUÉ M¼ÉîAiÀÄzÀÄ

A. ªÀÄAzÀ ¨É¼ÀQ£À°è ¥ÀŸÀÛPÀ NzÀĪÀÅzÀÄ
B. zsÀƽ£À PÀtUÀ¼ÀÄ ¥ÀæªÉò¹zÁUÀ PÀtÄÚUÀ¼À£ÀÄß GdÄÓªÀÅzÀÄ
C. ¸ÀÆAiÀÄð£À CxÀªÁ ¥ÀæRgÀªÁzÀ ¨É¼ÀPÀ£ÀÄß §jUÀtÂÚ¤AzÀ £ÉÆÃqÀ¢gÀĪÀÅzÀÄ
D. Cwà ºÀwÛgÀ¢AzÀ ¥ÀŸÀÛPÀªÀ£ÀÄß NzÀĪÀÅzÀÄ

GvÀÛgÀ: ____________________

8. MAzÀÄ UÁf£À ¥ÀlÖPÀzÀ ªÀÄÆ®PÀ ©½AiÀÄ ¨É¼ÀQ£À QgÀt ºÁzÀÄ ºÉÆÃzÁUÀ K¼ÀÄ §tÚUÀ¼ÁV
«¨sÀf¸À®Ä PÁgÀtªÁzÀ «zÀåªÀiÁ£À

A. ¨É¼ÀQ£À ªÀQæÃ¨sÀªÀ£À B. ªÀtð ¸ÀAAiÉÆÃd£É
C. ¨É¼ÀQ£À zsÀÄæ«ÃPÀgÀt D. ¨É¼ÀQ£À «ªÀvÀð£É

GvÀÛgÀ: ____________________

9. EªÀÅUÀ¼À°è zÀºÀå ªÀ¸ÀÄÛªÀ£ÀÄß UÀÄgÀÄw¹.

A. PÀ®Äè B. UÁdÄ
C. MtºÀÄ®Äè D. PÀ©âtzÀ ªÉƼÉ

GvÀÛgÀ: ____________________

10. EªÀÅUÀ¼À°è CvÀÄåvÀÛªÀÄ «zÀÄåvï ªÁºÀPÀ,

A. vÁªÀÄæzÀ vÀAw B. GQÌ£À ¦£ï
C. PÀ©âtzÀ ªÉÆ¼É D. ªÉÄUÉßöAiÀĪÀiï ¥ÀnÖ

GvÀÛgÀ: ____________________

Page 18

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11. F «zÀåªÀiÁ£ÀªÀ£ÀÄß UÀÄgÀÄw¹

A. C¯ÉUÀ¼ÀÄ B. ©gÀÄUÁ½
C. «ÄAZÀÄ D. ¨sÀÆPÀA¥À

GvÀÛgÀ: ____________________

12. EªÀÅUÀ¼À°è ºÉÆwÛPÉÆ¼Àî®Ä ºÉZÀÄÑ ¸ÀªÀÄAiÀÄ vÉUÉzÀÄPÉÆ¼ÀÄîªÀ ªÀ¸ÀÄÛ,

A. ªÀÄgÀzÀ PÀnÖUÉ B. ¸ÉÆÃrAiÀÄA
C. ¥ÉÃ¥Àgï D. CqÀÄUÉ C¤®

GvÀÛgÀ: ____________________

13. ¥ÀæªÁ¸ÀPÉÌ ºÉÆÃzÀ «zÁåyðUÀ¼ÀÄ ±ÀæªÀt¨É¼ÀUÉÆ¼ÀzÀ°ègÀĪÀ UÉÆÃªÀÄmÉñÀégÀ£À «UÀæºÀzÀ
»A¨sÁUÀzÀ°è vÀ¯ÉVAvÀ JvÀÛgÀªÁV MAzÀÄ ¯ÉÆÃºÀzÀ PÀA© EgÀĪÀÅzÀ£ÀÄß UÀªÀĤ¸ÀÄvÁÛgÉ. F
¯ÉÆÃºÀzÀ PÀA©AiÀÄ PÁAiÀÄð

A. «ÄAa¤AzÀ «zÀÄåvï ±ÀQÛAiÀÄ£ÀÄß GvÁࢸÀ®Ä
B. «ÄAa£À ¥ÀæªÀiÁt ºÉaѸÀ®Ä
C. «UÀæºÀªÀ£ÀÄß «ÄAa¤AzÀ gÀQë¸À®Ä
D. «UÀæºÀPÉÌ «ÄAa£À ¨É¼ÀPÀ£ÀÄß ¥Àæw¥sÀ°¸À®Ä

GvÀÛgÀ: ____________________
[ Turn over

Page 19

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14. ¥ÀæAiÉÆÃUÁ®AiÀÄzÀ°è ²PÀëPÀgÀÄ «zÁåyðUÀ½UÉ ¹ÃªÉÄ JuÉÚAiÀÄ°è ¸ÀAUÀ滹lÖ ¸ÉÆÃrAiÀÄA
C£ÀÄß ºÉÆgÀ vÉUÉAiÀÄzÀAvÉ ¸ÀÆa¸ÀÄvÁÛgÉ. KPÉAzÀgÉ ¸ÉÆÃrAiÀÄA UÁ½AiÀİè

A. D«AiÀiÁUÀÄvÀÛzÉ B. Që¥ÀæªÁV GjAiÀÄÄvÀÛzÉ
C. ªÀÄAzÀªÁV GjAiÀÄÄvÀÛzÉ D. PÀgÀUÀÄvÀÛzÉ

GvÀÛgÀ: ____________________

15. EzÀ£ÀÄß fêÀPÉÆÃ±ÀzÀ ``fêÀAvÀ ¥ÀzÁxÀð'' JAzÀÄ PÀgÉAiÀÄĪÀgÀÄ

A. PÉÆÃ±ÀPÉÃAzÀæ B. PÉÆÃ±À©üwÛ
C. ¥ÉÇæÃmÉÆÃ¥Áè¸ÀªÀiï D. PÉÆÃ±ÀzÀæªÀå

GvÀÛgÀ: ____________________

16. PÉÆnÖgÀĪÀ avÀæzÀ°è C¯ÉÊAVPÀ ¸ÀAvÁ£ÉÆÃvÀàwÛAiÀÄ «zsÀ
«¨sÀd£É ºÉÆAzÀÄwÛgÀĪÀ
PÉÆÃ±ÀPÉÃAzÀæ
ªÀÄj C«ÄèÁUÀ¼ÀÄ

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Document Details

Board / OrgKarnataka Board
ExamClass 8
TypeSample Paper
Pages25
Updated30 Apr 2026