science
Grade-5
Easy
Question
Energy transfers are always 100% efficient.
- True
- False
Hint:
The second law explains why energy transfers are never 100% efficient.
The correct answer is 'False'.
Energy transfers are never 100% efficient.
- The efficiency of energy transmission between trophic levels is low.
- Only around 10% of the net productivity at one level is carried over to the next level as net productivity.
- When energy is moved across trophic levels, it is lost.
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