Question

In the given figure, the various trophic levels are shown in a pyramid. At which trophic level is maximum energy available?

• A. $T_4$
• B. $T_2$
• C. $T_1$
• D. $T_3$

Answer 1

The correct option is C $T_1$

With reference to the given image, maximum energy is available at level $T_1$. $T_1$ is the first trophic level and has 100% of energy formed by photosynthesis; and let that be 100 KJ.
According to Lindemann's 10% law, $T_2$ (second trophic) level will get 10% of energy present in level $T_1$ i.e., 10 KJ (10% of 100 KJ), $T_3$ will get 10% of energy present in level $T_2$ i.e., 1 KJ (10% of 10 KJ) and so on $T_4$ will get 0.1 KJ energy.