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The number of levels in a food chain usually ranges between:
AThree to five
BOne to two
CTen to twelve
DSix to nine
Answer & Solution
Correct answer: A. Three to five
1. Energy is lost at each level.
2. Chains have three to five levels.
3. Loss comes through respiration and excretion.
_Source: NCERT Class 11 Fundamentals of Physical Geography, Chapter 15, Life on the Earth._
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