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What is polyblend ? Why did the plastic ...

What is polyblend ? Why did the plastic manufacturers think of producing it ? Write its usefulness.

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Poiyblend is a fine powder of recycled modified plastic. Polyblend was produced to recycle plastic waste. When blended with bitumen, polyblend can be used to lay roads that have increased road life.
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SET-III
  1. Biopiracy should be prevented. State why and how

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  2. Why is tobacco smoking associated with rise in blood pressure and emph...

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  3. What is polyblend ? Why did the plastic manufacturers think of produci...

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  4. Study the diagram showing replication of HIV in humans and answer the ...

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  5. Answer the following questions based on Meselson and Stahl s experimen...

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  6. A true breeding homozygous pea plant with green pods and axial flowers...

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  7. Some allergens trigger sneezing and wheezing in human beings. What cau...

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  8. Are the thorn of Bougainvillea and tendril of cucurbita homologous or ...

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  9. Mention the two addition processing which hnRNA needs to undergo after...

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  10. Which of the following is a free living bacteria that can fix nitrogen...

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  11. Name the muscular and the glandular layers of human uterus . Which one...

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  12. Name the hormonal composition of the oral contraceptive used by human ...

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  13. What is 'r' in the population equation given : dN/dt = rN

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  14. How does the increase and the decrease in the value of'r' affect the p...

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  15. Name the respective forms in which the malaria parasite gains entry in...

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  16. Name the hosts where the sexual and the asexual reproductions of malar...

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  17. Name the toxin responsible for the appearance of symptoms of malaria i...

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  18. What did Meselson and Stahl observe when They cultured E. coli in a...

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  19. You are given a red flower-bearing pea plant and a red flower-hearing ...

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  20. Draw a labelled diagram of a mature embryo sac. Why does a pollen grai...

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