IMPORTANT QUESTIONS

1. Q51 Which of the following is/are the characteristics of diversity in India?

   • (a) Different languages
   • (b) Different cultures
   • (c) Different religions
   • (d) All of these

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2. Q52 A student observed a permanent slide showing asexual reproduction in Hydra. Name the process of reproduction also write down the steps

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3. Q53 State the purpose of the soft iron core used in making an electromagnet.

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4. Q54 What provides nutrition to human sperms? State the genetic constitution of a sperm.

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5. Q55 What are the two advantages of using cloth bags over plastic bags?

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6. Q56 Mention various ways to breakdown glucose include both aerobic and anaerobic pathways.

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7. Q57 Write a note on the Indus seals.

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8. Q58 Write two uses of washing soda?

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9. Q59 HCl and HNO₃ show acidic characteristics in aqueous solution while alcohol and glucose solutions do not. Give reasons.

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10. Q60 An electric refrigerator rated 400 W is used for 8 hours a day. An electric iron box rated 750 W is used for 2 hours a day. Calculate the cost of using these appliances for 30 days, if the cost of 1 kWh is Rs.3/-.

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