Which of the following cannot be 1 point
used for measurement of time?
*
Answers
Answer:
Therefore, a pendulum clock cannot be used for measuring time.
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380Vgen to adults thronge injections wll ay H g rn ae penptaiput aues ap kq poonpoad ae sojound jo sad pog a t x SECTION-B 2 Dutne the fellowing terms in detail with examples: 3.1. What are the two main erop seasons? Give two examples 3.1. Name the Scientist who discovered penicillin. Weite his contribution in Microbiology. 33 What are themosetting Plastics. Give three examples 34. What do you understand by the term Atom? 3.5 Define the term conductivity. Give two examples. 3.6. Define Explosion 3,7. What is Glohal warning? 3.8. What is Binary fission deseribe with the help of diagmm. JNOLLI8S 4 Answer the following quetions In about S0-60 wards: 4.1. Draw a Fenale reprod fertilzation take place in Ilumans 4.2. Drawa Labelled diagrum of Leguminous Plant routs 0 To show root Nodules (i) Explain bow toot nodules belp in Nitrugen fixation Write three difference between Manure nd femilines along with eaamplea. 4.4. soop aug (a) sed aami s aqe) munH u tasks aan Nane all the products formad when aluminam reacts wih Sulphurie neid nd complete the following chemical reactions Zn-2NaCH-2H:0- (m n OS 4,5. a) How peroleum fomed. Wiat is the principie of refining petrolinum b) Name owo petroleum products 4.6. Caloric value of cow dung cakes is 7000 Kms How smelt cow dung cakes are required to produce heir energy of 35D00L What is the calorific value of Petrol 4.7. What ia meantime by protoplasm? Mention would difference between plant and animal eells 4,8. ) Mention the importance of reproduction in organisms b) Describe in stories retaliations. SECTION D 5. Answer the fallowing questions in about 80-90 words (4x6=24M) S.1. (a) Identify the apparatus shown in the given figure Write the name of the process involved. (b) Elaborate the above process mentioned I'm (a) part. (c) Name three products and their uses which are obtained after this process 52. (4) The extra covering that surrounds the plant cells. Write its No function. Describe why this extra covering is present in the plant cell A Why ate nerve cells long? Why do these cells have projection?