Class 10 Science

1. Heredity and Evolution BOARD QUESTIONS

Complete the statements by choosing correct options from bracket. Transfer of information from molecule of DNA to mRNA is called ……………….. process. (March ’20) (Textual)   (A) translocation    (B) translation    (C) transcription    (D) mutationAns. (C) transcription …………… is a connecting link between Annelida and Arthropoda. (March ’19)    (A) Duck-billed platypus     (B) […]

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9: Social health BOARD QUESTIONS

Choose the correct alternative and write its alphabet against the subquestion number: ……………… helps to improve concentration in the studies. (Sept. ’21)(A) Meditation     (B) Music       (C) Dancing     (D) LaughingAns.  (A) Meditation  State whether True or False : Tobacco containing substances cannot cause cancer of mouth and lungs. (March ’20)Ans. False What

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8: Cell Biology and Biotechnology BOARD Questions

(a) What is biotechnology? (March ’19) Ans. The techniques of bringing about improvements in living organisms by artificial genetic changes and by hybridization for the welfare of human beings is called biotechnology. (b) Explain any two commercial applications of it. (March ’19)Ans. Biotechnology can be used in the following professional fields, viz. crop biotechnology, animal

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9: Social health

Click here for Board Questions of This Chapter 1. Fill in the blanks with appropriate word. Ans. (a) Laughter club is a remedy to drive away stress(b) Alcohol consumption mainly affects nervous system.(c) The act IT ACT-2000 is to curb the cyber crimes. 2. Answer the following. (a) Which factors affect the social health?  (Nov

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