Maharashtra SSC Class 10 Science and Technology II March 2025 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 markA molecule of glucose is completely oxidised in aerobic respiration and molecules of and ____ are produced along with energy.
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- Q.1 (A) (ii)1 markVinegar contains ____ acid.
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- Q.1 (A) (iii)1 markAny nucleotide of the gene suddenly changes its position that causes a minor change which is nothing but the ____.
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- Q.1 (A) (iv)1 markIn humans, sperm production occurs in the ____ organ.
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- Q.1 (A) (v)1 markSolar photovoltaic cell converts the solar radiation energy directly into ____ energy.
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Q.1 (B)
1 mark each
- Q.1 (B) (i)1 markFind the odd one out: Fragmentation, Regeneration, Budding, Fertilization.
- Q.1 (B) (ii)1 markWrite the correct co-relation: Diabetes : Insulin :: Cancer : ____
- Q.1 (B) (iii)1 markState whether true or false: Study of fossils is an important aspect of the study of evolution.
- Q.1 (B) (iv)1 markGive any two commercial uses of Biotechnology.
- Q.1 (B) (v)1 markBeing a fish, I perform respiration with the help of lungs. Who am I?
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 not right to consider the mother responsible for giving birth to a girl child.
- Q.2 (A) (iii)2 marksGive scientific reason: The energy generated from nuclear fuels is not environment friendly.
Q.2 (B)
2 marks each · attempt any 3
- Q.2 (B) (i)2 marksComplete the following food chain: Grass ____ ____ ____ Eagle ____
- Q.2 (B) (ii)2 marksDistinguish between the following: Class Pisces and Class Reptiles.
- Q.2 (B) (iii)2 marksObserve the following picture and write any two effects of this disaster.
- Q.2 (B) (iv)2 marksWrite any four methods to reduce stress.
- Q.2 (B) (v)2 marksComplete the following conceptual picture (uses of 'Sewage after processing' — four uses around the central box).
Q.3
3 marks each · attempt any 5
- Q.3 (i)3 marksDefine heredity. Explain the mechanism of hereditary changes.
- Q.3 (ii)3 marksWrite any four stages of mitosis and explain any two of them.
- Q.3 (iii)3 marksExplain with examples types of asexual reproduction in unicellular organism.
- Q.3 (iv)3 marksWhich fuel is used in thermal power plant? Write any two problems associated with this type of power generation.
- Q.3 (v)3 marksWrite three characteristics of phylum-Mollusca.
- Q.3 (vi)3 marksWhat are the constituents of acid rain? What are its two effects on earth's surface?
- Clues: (1) across, (2)(3)(4) down; the across entry is printed as A-D-D-I-C-T-I-O-N.Q.3 (vii)3 marksSolve the following crossword: (1) Continuous consumption of alcoholic and tobacco materials. (2) This app may cause cyber crimes. (3) A remedy to resolve stress. (4) Requirement for stress free life. [Across word 1 is printed as ADDICTION.]
- Q.3 (viii)3 marksWrite down the reasons, effects and remedial measures taken for any one disaster seen or heard by you.
Q.4
5 marks each · attempt any 1
- Q.4 (i)5 marksWhat is biodiversity? Write any four steps to conserve biodiversity.
- Q.4 (ii)5 marksWhat is stem cell? Write any four uses of stem cell.