The flow of energy declines from lower to higher trophic levels in an ecosystem,which is mainly explained by:

  • A
    First law of thermodynamics
  • B
    Second law of thermodynamics
  • C
    Both of these
  • D
    None of the above

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If plants have $1000\,J$ of energy,how much energy will reach the trophic level of a lion (in $,J$)?

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