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1. Distinguish between heartwood and sapwood. 

2. Heartwood is durable why?

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1. Distinguish between heartwood and sapwood 

Heartwood

  • found in the central part 
  • nonfunctional 
  • dark coloured

Sapwood

  • found in peripheral part 
  • functional 
  • light coloured

2. Heartwood is resistant to microbial attack and it is filled with resin, gum, essential oil, aromatic oil, and tannins. Hence heartwood is durable

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