Maharashtra Board Class 10 SSC Science and Technology -II Question Paper

Mukund Pathak March 18, 2023

 

Maharashtra Board Class 10 
SSC Science and Technology -II Question Paper

STD: SSC (Xth)         Science and Technology-II    Marks: 40 Marks        Time: 2 Hours 

Note : In case of MCQ, the correct alternative (A), (B), (C) or (D) with sub-question number is to be written as an answer. For eg :   i (A), ii (B), iii (C)


Q. 1 (A) Choose the correct option.                    (05)

      i)     ____________ is a geological type of disaster.
          (A) Forest fire         (B)   Earthquake            (C)  Terrorism        (D)  Infections virus

      ii) Crossing over between homologous chromosome occurs in ____________.                        (A) Mitosis          (B)  Cytokinesis      (C)  Meiosis - I,         (D)  Meiosis - II                                         

    iii) Yeast reproduces by ____________.                                                                                      (A) Budding           (B)  Binary fission          (C)  Multiple fission      (D)  Fragmentation                   

    iv) Sea-cucumber belongs to phylum ____________.                                                                    (A) Porifera          (B)  Echinodermata         (C)  Mollusca        (D)  Annelida                                         

     v) ____________ converts salts of uranium into insoluble salts.                                                   (A) Spinosad         (B)  Yeast         (C)  Nocardia         (D)  Geobacter

  (B) Solve the following.                                (05)
    1) Find the odd man out: crab, earthworm, Leech, Nereis
    2) State TRUE or FALSE: Azolla is used as a biofertilizer
    3) Alcohol consumption mainly affects ____________ system.
    4) What will happen if following symbol is ignored?



                        5)    Identify the process related to formation of complex proteins.



Q. 2 (A) Give scientific reasons (Any 2).                               (04)

 1)   Enzymes obtained by microbial process are mixed with detergents.

 2)   Though tortoise lives on land as well as in water, it cannot be included in class                        amphibia.                  

3)  Hydroelectric energy, solar energy and wind energy are called renewable energies.


(B) Solve any 3 of the following.                                     (06)                                                     1)    How does bread becomes spongy?

  2)     Distinguish between aerobic and anaerobic respiration (2 points).                                 3)     Explain any 2 ways to minimize stress.                                                                              4)      Draw a neat labelled diagram of flower with its sexual reproductive organs.

Complete the following flow chart:


 

Absorber for absorbing

the concentrated sun light


 

Electric generator



Electric energy

Q. 3 Solve any 5 of the following.                                (15)

    1)    State any 3 characters of class Aves.

    2)     Explain anatomical evidence of evolution.

    3)     Write a short note on sacred groves.

    4)     Give your opinion about whether hydro electric plants are environment friendly or                 not. 

    5)   Complete the following conceptual picture related to environmental management.



6) Rewrite the paragraph by selecting right option from the bracket:

    (ovum, sperm, ovary, abdomen, male, female, oocyte, oviduct, epididymis, cilia)

All organs of ____________ reproductive system are in abdominal cavity. Generally every month, an ____________ is released from each ____________. Free end of ____________ is funnel-like. An opening is present at the center of it. ____________ enters the oviduct through that opening. ____________ which are present on inner surface of oviduct, pushes the oocyte towards uterus.

7) What will you do? Why?
a) Your friend has developed the hobby of snapping selfies.
b) child of your neighbour is addicted to tobacco chewing,
c) Your sister has become in communicative. She prefers to remain alone.

8) Complete the following flow chart.


Q.4 Answer any one of the following:                                 (05)
    1) a) What is biotechnology?
        b) State any 2 benefits of biotechnology.
        c) Give 2 examples of genetically modified crops.
    2)  Following are the pictures of some disasters. 
         How will be your pre and post-disaster management in case you face any of these disasters.

A)

                                


                          B)

                                            



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