Question

How does the second law of thermodynamics relate to the energy pyramid?

Answer 1

The subsequent law identifies with the nature of energy. This law expresses that at whatever point energy is changed, some of it should be debased into a less valuable structure. In biological systems, the greatest misfortunes happen as breath. The subsequent law clarifies why energy moves are rarely $100\%$ effective.

Complete answer:
The subsequent law expresses that usable energy consistently diminishes. In the energy pyramid $90\%$ of usable energy is lost at each level.
Energy is constantly lost as energy is moved to start with one level then onto the next. This is the second law of thermodynamics which expresses that everything known to mankind moves from high energy to low energy from high data to uninformed, from complex structures to less mind-boggling structures.
Plants get energy from the sun. Plants utilize $90\%$ of the energy to keep up vegetation. This leaves just $10\%$ of the energy to be given to creatures that eat plants called herbivores, or first level customers.
First level customers utilize $90\%$ of the energy that they get from plants to keep up their life capacities. This leaves just $10\%$ of the energy to be given to creatures that eat creatures called carnivores or second-level customers.
The deficiency of energy because of the second law of thermodynamics brings about a pyramid with a huge base and a $10\%$ proportion between levels.

Note: Since natural effectiveness is so low, each trophic level has a progressively more modest energy pool from which it can pull out energy. This is the reason food networks have close to four to five trophic levels. Past that, there isn't sufficient energy to support higher-request hunters.