Which law of the environment defines “no energy transformations are 100% efficient”?Options :Food chainFood web10% law2nd law of thermodynamics

Break Down the Problem

1. Identify the options given and understand what each term refers to in the context of environmental science and energy transformation.

Relevant Concepts

2. The key concepts to consider:
   • Food Chain: A linear sequence of organisms through which nutrients and energy pass.
   • Food Web: A complex network of food chains.
   • 10% Law: A principle stating that only about 10% of energy is passed from one trophic level to the next in a food chain.
   • 2nd Law of Thermodynamics: A fundamental principle in physics that states that energy transformations are not completely efficient and that some energy is always lost as heat.

Analysis and Detail

3. The "2nd law of thermodynamics" specifically addresses the efficiency of energy transformations. In any energy transfer, some energy is transformed into an unusable form, leading to the conclusion that no process can be 100% efficient. The 10% law relates to energy transfer in ecosystems but does not broadly define energy transformation efficiency like the 2nd law does.

Verify and Summarize

4. Given the definitions and principles, the most accurate answer is the one that specifically addresses the inefficiency of energy transformations in general. Therefore, the option "2nd law of thermodynamics" clearly fits the description.

Final Answer

The correct answer is 2nd law of thermodynamics.