When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up and dies because:
✓ Correct answer: b) Roots are starved of energy
ExplanationThe tissue just beneath the bark called the phloem layer is in charge of moving food produced by photosynthesis from the leaves to the roots.This process is called girdling, and it is fatal to trees because it disrupts the transport of nutrients.Without this nourishment, the roots eventually perish and stop supplying the leaves with water and nutrients.Later, the leaves wither.Because its roots are starved of vitality, a tree that has had its bark removed in a circular pattern all around near its base gradually dries up and dies.211
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