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The horizontal layers created by trees of different crown heights are called:

AHill terraces
BUnderstoreys
CTree canopies
DForest biomes
Answer & Solution
Correct answer: B. Understoreys
1. Giant trees form the top layer. 2. Shrubs, grasses and herbs form lower layers. 3. These layers are understoreys. _Source: syllabus Science, Chapter 17, Forests: Our Lifeline._
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