Maharashtra SSC Class 10 Science and Technology II March 2023 question paper
Maximum marks 40 · Time 2 hours
Try each question first, then open its model answer. Where the paper offers a choice, both questions are shown with OR between them.
Q.1 (A)
1 mark each
- Q.1 (A) (i)1 markVestigial organ ____ present in human body is proof of evolution.
Tap an option to check your answer.
- Q.1 (A) (ii)1 markType of sexual reproduction is ____.
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- Q.1 (A) (iii)1 markThe apex consumer is ____.
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- Q.1 (A) (iv)1 markThe Hydroelectric capacity of Koyna dam is ____.
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- Q.1 (A) (v)1 markAnimal with bilateral symmetry is ____.
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Q.1 (B)
1 mark each
- Q.1 (B) (i)1 markState whether the following statement is true or false: To take selfie on road is the invitation for accident.
- Q.1 (B) (ii)1 markWrite the correct co-relation: Insulin : diabetes :: Interferon : ____.
- Q.1 (B) (iii)1 markTo which class does bat belong?
- Q.1 (B) (iv)1 markMatch the correct pair:
Column 'A' Column 'B' (1) Forest Conservation Act (a) 1986 (b) 1980 (c) 1970 - Q.1 (B) (v)1 markWrite the name of the indicated part in the diagram of the human jaw.
Q.2 (A)
2 marks each · attempt any 2
- Q.2 (A) (i)2 marksGive scientific reason: Sometimes higher plants and animals too perform anaerobic respiration.
- Q.2 (A) (ii)2 marksGive scientific reason: It is absolutely necessary to control the fission reaction in a nuclear power plant.
- Q.2 (A) (iii)2 marksGive scientific reason: Flower is the structural unit of sexual reproduction in a plant.
Q.2 (B)
2 marks each · attempt any 3
- Q.2 (B) (i)2 marksWrite a short note on Environmental Conservation.
- Q.2 (B) (ii)2 marksDistinguish between Chordates and Non-chordates.
- Q.2 (B) (iii)2 marksWrite the correct answer in the blank circles of the concept map centred on 'Uses of stem cells'.
- Q.2 (B) (iv)2 marksWrite down any two objectives of disaster management.
- Q.2 (B) (v)2 marksWhat are the benefits of mixing ethanol with petrol and diesel?
Q.3
3 marks each · attempt any 5
- Q.3 (i)3 marksExplain Darwin's theory of natural selection.
- Q.3 (ii)3 marksComplete the following chart:
Sr. No. Proteins Name of the Organs 1 Melanin, Keratin ____ 2 ____ Pancreas 3 Haemoglobin, antibodies ____ - Q.3 (iii)3 marksWrite the factors affecting the environment.
- Refer to the figure of a hydroelectric power station showing the reservoir wall with three marked levels — A (top), B (middle) and C (bottom) — the sluice gate, penstock, turbine, generator and power house.Q.3 (iv) (a)3 marksWith reference to point B, the potential energy of how much water in the reservoir of the dam will be converted into kinetic energy?
- Q.3 (iv) (b)What will be the effect on electricity generation if the channel taking water to the turbine starts at point A?
- Q.3 (iv) (c)What will be the effect on electricity generation if the channel taking water to the turbine starts at point C?
- Q.3 (v)3 marksCockroach, Frog, Sparrow, Star fish — from these animals, which one can regenerate its broken body part?
- Q.3 (vi)3 marksComplete the diagram showing the various processes (steps) in tissue culture.
- Q.3 (vii)3 marksWhich fuels are obtained from biomass?
- Words given in brackets: (Delhi, 12, 2005, army, National Disaster, rescue work, State Reserve Police, 2015).Q.3 (viii)3 marksComplete the following passage by using appropriate words given in brackets: National Disaster Response Force has been established as per the Disaster Management Act, ____ . Divisions of this force are working in army. Overall, ____ divisions are working in the country. Its headquarter is in ____ and it is in action all over the country with the help of ____ . In Maharashtra, ____ Response Force is in action through State Reserve Police Force. Personnel of this force have substantial contribution in ____ in disasters like cyclones, cliff-sliding, building collapse, etc.
Q.4
5 marks each · attempt any 1
- Refer to the diagram of the menstrual cycle showing the hypothalamus (GnRH), pituitary glands (FSH, LH), changes in the ovary during menstruation (developing follicle, fully grown follicle, ovulation, corpus luteum, corpus albicans), hormones estrogen and progesterone, and the changes in the uterus (endometrium) over days 1 to 28.Q.4 (i) (a)5 marksObserve the diagram of the menstrual cycle and answer: What is the period of menstruation (menstrual cycle)?
- Q.4 (i) (b)On which day does ovulation occur during the menstrual cycle?
- Q.4 (i) (c)In the menstrual cycle, which reproductive organs undergo changes?
- Q.4 (i) (d)Which period is said to be the period of regeneration of the endometrium?
- Q.4 (i) (e)Which period is said to be the period of secretions of the glands in the endometrium?
- Q.4 (ii)5 marksSolve the following cross word (the across word numbered 1 is given as ADDICTION): (1) Continuous consumption of alcoholic and tobacco materials. (2) This app may cause the cyber crimes. (3) A remedy to resolve stress. (4) Requirement for a stress-free life. (5) Various factors affect ____ health. (6) Art of preparing food items.