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Science and Technology 2 Set 1 2018-2019 SSC (Marathi Semi-English) 10th Standard [इयत्ता १० वी] Question Paper Solution

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Science and Technology 2 [Set 1]
Marks: 40Academic Year: 2018-2019
Date & Time: 18th March 2019, 11:00 am
Duration: 2h30m

1) All questions are compulsory.
2) Draw scientifically correct labelled diagrams wherever necessary.
3) Start writing each main question on new page.
4) Figures to the right indicate full marks.


[10]1
[5]1.A | Solve the following questions:
[1]1.A.i

Identify the process shown in figure and name it.

Concept: Nuclear Energy
Chapter: [0.05] Towards Green Energy
[1]1.A.ii

Pranav and Preeti are twins in your class. They belong to ___________ twins type.

Concept: Asexual Reproduction in Plant
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle [0.15] The Life Cycle [0.15] The Life Cycle [0.15] The Life Cycle [0.15] The Life Cycle [0.15] The Life Cycle [0.15] The Life Cycle
[1]1.A.iii

There is a oil layer on the water surface of river in your area. What will you do ?

Concept: Clean Technology
Chapter: [0.07] Introduction to Microbiology
[1]1.A.iv

Fill in the boxes with the help of the given due :
Continuous consumption of alcohol and tobacco material ___________

A             O  
Concept: Social Health
Chapter: [0.09] Social Health
[1]1.A.v

Find out the correlation :
White revolution : Increase in dairy production : : Green revolution : ____________

Concept: Important Stages in Agricultural Develoment
Chapter: [0.08] Cell Biology and Biotechnology
[5]1.B |  Choose the correct alternative and rewrite the statements :
[1]1.B.i

Somatic and stem cells undergo ___________ type of division.

meiosis

mitosis

budding

cloning

Concept: Cell Division: an Essential Life Process
Chapter: [0.02] Life Processes in Living Organisms Part -1
[1]1.B.ii

Which of the following is man-made disaster ?

Earthquake

Flood

Meteoric

Leakage of toxic gases

Concept: Disaster
Chapter: [0.1] Disaster Management
[1]1.B.iii

In a food chain autotrophic plants are present at the ___________ level.

Tertiary nutrition

Secondary nutrition

Producer

Apex

Concept: Ecosystem
Chapter: [0.04] Environmental Management
[1]1.B.iv

___________ is a cold blooded animal.

Bat 

Snake

Rabbit

Elephant

Concept: Phylum
Chapter: [0.06] Animal Classification
[1]1.B.v

___________ is a connecting link between Annelida and Arthropoda.

Duck-billed platypus 

Peripatus 

Lungfish

Whale

Concept: Evidence of Evolution - Connecting Links
Chapter: [0.01] Heredity and Evolution
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[10]2 | Attempt any five.
[2]2.A

Complete the following chart :

Concept: Evidence of Evolution
Chapter: [0.01] Heredity and Evolution [0.16] Mapping Our Genes
[2]2.B

Draw a neat diagram of the structure of chromosome and label the parts :
1) Centromere
2) p-arm

Concept: Asexual Reproduction in Animal
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.03] Life Processes in Living Organisms Part - 2
[2]2.C

What are the advantages of hydroelectric power generation ?

Concept: Hydroelectric Energy
Chapter: [0.05] Towards Green Energy
[2]2.D

State any four benefits of animal classification.

Concept: History of Animal Classification
Chapter: [0.06] Animal Classification
[2]2.E

State any four objectives of disaster management.

Concept: Nature and Scope of Disaster
Chapter: [0.1] Disaster Management
[2]2.F

Give scientific reason.
Microbial enzymes are used instead of chemical catalysts in chemical industry.

Concept: Microbial Enzymes
Chapter: [0.07] Introduction to Microbiology
[2]2.G

Read the following extract and answer the questions that follow :
A liberal view behind the concept of organ and body donation is that after death our body should be useful to other needful persons so that their miserable life would become comfortable. Awareness about these concepts is increasing in our country and people are voluntarily donating their bodies.
Life of many people can be saved by organ and body donation. Blinds can regain their vision. Life of many people can be rendered comfortable by donation of organs like liver, kidneys, heart, heart valves, skin etc. Similarly, body can be made available for research in medical studies. Many government and social organizations are working towards increasing the awareness about body donation.
1) What is the liberal view behind the organ and body donation ?
2) Name any four organs that can be donated.

Concept: Organ and Body Donation
Chapter: [0.08] Cell Biology and Biotechnology
[15]3 | Attempt any five
[3]3.A

Answer the following questions :
1) What do you mean by central dogma ?
2) What is transcription ?
3) What is meant by triplet codon ?

Concept: Transcription, Translation and Translocation
Chapter: [0.01] Heredity and Evolution
[3]3.B

Complete the following chart and state which process of energy production it represents :

Concept: Living Organisms and Life Processes
Chapter: [0.02] Life Processes in Living Organisms Part -1
[3]3.C

Playing games on mobile while eating is right or wrong. Justify.

Concept: Communication Media and Excessive Use of Modern Technology
Chapter: [0.09] Social Health
[3]3.C.i

What do you conclude from the following picture ?

Concept: Communication Media and Excessive Use of Modern Technology
Chapter: [0.09] Social Health
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[3]3.C.ii

Observe the following picture and state what can be the outcome ?

Concept: Communication Media and Excessive Use of Modern Technology
Chapter: [0.09] Social Health
[3]3.D

Observe the diagram and answer the questions :

1) Which energy is generated from the power plant ?
2) State its source.
3) Which is more ecofriendly - Power generation from coal or Power generation from natural gas ? Why ?

Concept: Power Generation Plant Based on Energy of Natural Gas
Chapter: [0.05] Towards Green Energy
[3]3.E

Identify my class/phylum and give one example of it :
1) I have mammary glands and exoskeleton in the form of hair.
2) We form the highest number of animals on the planet. We have bilateral symmetry and our exoskeleton is in the form of chitin.
3) I live in your small intestine, my body is long and thread like and pseudocoelomate. 

Concept: Phylum
Chapter: [0.06] Animal Classification
[3]3.F

Observe the following figure and answer the questions :

(a) Identify the process shown in the figure. 
(b) Explain the process in short.

Concept: Applied Microbiology
Chapter: [0.07] Introduction to Microbiology
[3]3.G

(a) What is biotechnology?
(b) Explain any two commercial applications of it.

Concept: Biotechnology
Chapter: [0.08] Cell Biology and Biotechnology
[5]4 | Attempt any one
[5]4.A
[2]4.A.i

Identify the following symbols and state their significance

Concept: Environmental Conservation and Biodiversity
Chapter: [0.04] Environmental Management
[3]4.A.ii

How can biodiversity be conserved ?

Concept: Need of Environmental Conservation
Chapter: [0.04] Environmental Management
[5]4.B | Answer the following quesitons :
[2]4.B.i

“Gender of child is determined by the male partner of couple”. Draw a diagram explaining the above statement.

Concept: Human Reproductive System
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[1]4.B.ii

Prepare a slogan for campaign against female foeticide.

Concept: Sexual Reproduction in Flowering Plants
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.15] The Life Cycle
[1]4.B.iii

In the following figure, explain how new fungal colonies mucor are formed :

Concept: Asexual Reproduction in Animal
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.03] Life Processes in Living Organisms Part - 2
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[1]4.B.iv

Identify and state the type of reproduction represented in the above figure.

Concept: Asexual Reproduction in Animal
Chapter: [0.03] Life Processes in Living Organisms Part - 2 [0.03] Life Processes in Living Organisms Part - 2

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Maharashtra State Board previous year question papers 10th Standard [इयत्ता १० वी] Science and Technology 2 with solutions 2018 - 2019

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