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

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Science and Technology 2 [Balbharati Model Question Paper Set 2]
Marks: 40Academic Year: 2018-2019
Date: March 2019

[10]1
[5]1.1 | Attempt the following.
[1]1.1.i

Survival of fittest : Darwin : : Acquired characters : ..............................

Concept: Lamarckism
Chapter: [1] Heredity and Evolution
[1]1.1.ii

Why the bryophytes are called as amphibians of kingdom plantae?

Concept: History of Animal Classification
Chapter: [6] Animal Classification
[1]1.1.iii

Identify the odd. Stigma, Style, Pollen, Ovary.

Concept: Sexual Reproduction in Flowering Plants
Chapter: [3] Life Processes in Living Organisms Part - 2 [15] The Life Cycle
[1]1.1.iv

What are stem cells?

Concept: Stem Cells
Chapter: [8] Cell Biology and Biotechnology [8] Cell Biology and Biotechnology
[1]1.1.v

State whether true or false– Flow of nutrients in an ecosystem is unidirectional.

Concept: Relationship Between Environment and Ecosystem
Chapter: [4] Environmental Management
[5]1.2
[1]1.2.i

Write the correct option from the given multiple options.
We get ...................energy from carbohydrates.

9 kcal / gm

9 cal / gm

4 cal / gm

4 kcal / gm

Concept: Energy from Different Food Components
Chapter: [2] Life Processes in Living Organisms Part -1
[1]1.2.ii

Write the correct option from the given multiple options.
Which of the following is not the source of green energy?
a) Wind.
b) Natural gas.
c) Sunlight.
d) Fossil fuel.

Concept: Energy and Use of Energy
Chapter: [5] Towards Green Energy
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[1]1.2.iii

Write the correct option from the given multiple options.
Vegetative propagation is performed with the help of ..........................in sweet potato.
a) root
b) stem
c) leaf
d) flower.

Concept: Asexual Reproduction in Organisms - Vegetative Propagation
Chapter: [3] Life Processes in Living Organisms Part - 2
[1]1.2.iv

Write the correct option from the given multiple options.
Which of the following vitamin is necessary for synthesis of NADH2?
a) Vitamin B2
b) Vitamin B5
c) Vitamin C
d) Vitamin K

Concept: Living Organism and Energy Production
Chapter: [2] Life Processes in Living Organisms Part -1
[1]1.2.v

Write the correct option from the given multiple options to each question.
Maximum effect of alcohol occurs on .. .. .. .. .. .. system.
a) nervous
b) excretory
c) respiratory
d) muscular

Concept: Factors Disturbing the Social Health
Chapter: [9] Social Health
[10]2 | Attempt the following (Any five)
[2]2.1

Write the forms to which following food materials are converted after digestion.
1.Milk
2. Potato.
3. Oil.
4. Chapati

Concept: Living Organisms and Life Processes
Chapter: [2] Life Processes in Living Organisms Part -1
[2]2.2

Sketch and label the diagram showing self- and cross-pollination.

Concept: Sexual Reproduction in Animals
Chapter: [3] Life Processes in Living Organisms Part - 2 [15] The Life Cycle
[2]2.3

If a piece of bread is kept in a container in moist place for 2 – 3 days,
1. What will you see?
2. Write scientific name and a character of the organism you may observe.

Concept: Bread
Chapter: [7] Introduction to Microbiology
[2]2.4

Observe the following picture and describe the type of reproduction shown in.

Concept: Asexual Reproduction in Organisms - Regeneration
Chapter: [3] Life Processes in Living Organisms Part - 2
[2]2.5

Write any two points of differences between flat worms and round worms.

Concept: Traditional Method of Animal Classification
Chapter: [6] Animal Classification
[2]2.6

Explain the meanings of ‘symbols A’ & ‘B’.

Concept: Environmental Conservation and Biodiversity
Chapter: [4] Environmental Management
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[2]2.7

Which businesses will you start near the agro-tourism center?

Concept: Need of Environmental Conservation
Chapter: [4] Environmental Management
[15]3 | Attempt the following (Any five)
[3]3.1

Observe the picture and answer the following questions.
A) Which evidence of evolution is shown in the picture?
B) What can be proven with this proof?
C) Give one more example of evidence of evolution

Concept: Evidence of Evolution
Chapter: [1] Heredity and Evolution [16] Mapping Our Genes
[3]3.2

Write six strategies implemented by you for conservation of environment.

Concept: Environmental Conservation
Chapter: [4] Environmental Management
[3]3.3

What is shown in the picture? Write name and trophic level of each component.

Concept: Relationship Between Environment and Ecosystem
Chapter: [4] Environmental Management
[3]3.4

Sketch and label human female reproductive system.
Is the woman responsible for sex-determination of child? Justify your answer.

Concept: Human Reproductive System
Chapter: [3] Life Processes in Living Organisms Part - 2 [15] The Life Cycle
[3]3.5

Answer the questions with the help of picture.
A) Which type of energy is produced?
B) This power plant is based on which energy source?
C) Is this power plant eco-friendly? How?

Concept: Electric Energy Generation and Environment
Chapter: [5] Towards Green Energy
[3]3.6

How the excessive use of social media and technology is proving harmful?

Concept: Communication Media and Excessive Use of Modern Technology
Chapter: [9] Social Health
[3]3.7

Where and in which forms the amino acids formed after digestion of food are used in the body?

Concept: Energy from Different Food Components
Chapter: [2] Life Processes in Living Organisms Part -1
[5]4 | Attempt the following. (Any one)
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[5]4.1


A) Which process is shown in the above figure?
B) Describe in brief the steps- I , II , III & IV.

Concept: Biotechnology
Chapter: [8] Cell Biology and Biotechnology
[5]4.2

Observe the images ‘A’ & ‘B’ and answer the following questions.

i) Which disasters are shown in the images?
ii) Which primary precautions will you take in case of disaster shown in ‘A’?
iii) Which type of first-aid is offered to the injured peoples in disaster ‘B’?

Concept: Disaster Management
Chapter: [10] Disaster Management
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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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