Maharashtra SSC Class 10 Science and Technology II March 2019 question paper with answers

Q.1 (A)

1 mark each

Q.1 (A) (i)1 mark $Identify the process shown in the figure and name it.$
Q.1 (A) (ii)1 mark $Fill in the blank and rewrite the completed statement: Pranav and Pritee are twins in your class. They belong to ____________ twins' type.$
Q.1 (A) (iii)1 mark $There is an oil layer on the water surface of a river in your area. What will you do?$
Q.1 (A) (iv)1 mark $Fill in the boxes with the help of the given clue: Continuous consumption of alcohol and tobacco material leads to ____________ . (The word has nine letters; the first letter is 'A' and the eighth letter is 'O'.)$
Q.1 (A) (v)1 mark $Find out the correlation: White revolution : Increase in dairy production :: Green revolution : ____________$

1 mark each

Q.1 (B) (i)1 mark $Somatic and stem cells undergo ____________ type of division.$
Tap an option to check your answer.
Q.1 (B) (ii)1 mark $Which of the following is a man-made disaster?$
Tap an option to check your answer.
Q.1 (B) (iii)1 mark $In a food chain, autotrophic plants are present at the ____________ level.$
Tap an option to check your answer.
Q.1 (B) (iv)1 mark $____________ is a cold-blooded animal.$
Tap an option to check your answer.
Q.1 (B) (v)1 mark $____________ is a connecting link between annelida and arthropoda.$
Tap an option to check your answer.

2 marks each · attempt any 5

Q.2 (i)2 marks $Complete the following chart:$
Q.2 (ii)2 marks $Draw a neat diagram of the structure of chromosome and label the parts: (a) Centromere (b) p-arm$
Q.2 (iii)2 marks $What are the advantages of hydroelectric power generation?$
Q.2 (iv)2 marks $State any four benefits of animal classification.$
Q.2 (v)2 marks $State any four objectives of disaster management.$
Q.2 (vi)2 marks $Give scientific reason: Microbial enzymes are used instead of a chemical catalyst in a chemical industry.$
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 organisations are working towards increasing the awareness about body donation.
Q.2 (vii) (a)2 marks $What is the liberal view behind organ and body donation?$
Q.2 (vii) (b) $Name any four organs that can be donated.$

3 marks each · attempt any 5

Q.3 (i) (a)3 marks $What do you mean by central dogma?$
Q.3 (i) (b) $What is transcription?$
Q.3 (i) (c) $What is meant by triplet codon?$
Q.3 (ii)3 marks $Complete the following chart and state which process of energy production it represents:$
Q.3 (iii) (a)3 marks $Playing games on the mobile while eating is right or wrong? Justify.$
Q.3 (iii) (b) $What do you conclude from the following picture?$
Q.3 (iii) (c) $Observe the following picture and state what can be the outcome?$
Observe the diagram of the power plant and answer the questions.
Q.3 (iv) (a)3 marks $Which energy is generated from the power plant?$
Q.3 (iv) (b) $State its source.$
Q.3 (iv) (c) $Which is more eco-friendly — power generation from coal or power generation from natural gas? Why?$
Identify my class/phylum and give one example of it.
Q.3 (v) (a)3 marks $I have mammary glands and exoskeleton in the form of hair.$
Q.3 (v) (b) $We form the highest number of animals on the planet. We have bilateral symmetry and our exoskeleton is in the form of chitin.$
Q.3 (v) (c) $I live in your small intestine, my body is long and thread-like and pseudocoelomate.$
Observe the following figure and answer the questions.
Q.3 (vi) (a)3 marks $Identify the process shown in the figure.$
Q.3 (vi) (b) $Explain the process in short.$
Q.3 (vii) (a)3 marks $What is biotechnology?$
Q.3 (vii) (b) $Explain any two commercial applications of biotechnology.$

5 marks each · attempt any 1

Q.4 (i) (a)5 marks $Identify the following symbols and state their significance:$
Q.4 (i) (b) $How can biodiversity be conserved?$
Q.4 (ii) (a)5 marks $'Gender of a child is determined by the male partner of a couple.' Draw a diagram explaining the above statement.$
Q.4 (ii) (b) $Prepare a slogan for the campaign against female foeticide.$
Q.4 (ii) (c) $In the following figure, explain how new fungal colonies of mucor are formed.$
Q.4 (ii) (d) $Identify and state the type of reproduction represented in the above figure.$