Botany - Ecosystem Question with Solution | TestHub

According to the given pyramid of energy, if ${\mathrm{T}}_4$ is equivalent to 1000 J , then according to the 10 percent law, which states that only 10 percent of energy is transferred to each trophic level from the lower trophic level, the value at ${\mathrm{T}}_1$ is $10,00,000\mathrm{J}$. $\begin{array}{rl}& T_1=10,00,000\mathrm{J}\\ & T_2=\frac{10}{100}\times 10,00,000=1,00,000\mathrm{J}\\ & T_3=\frac{10}{100}\times 100000=10,000\mathrm{J}\\ & T_4=\frac{10}{100}\times 10000=1000\mathrm{J}\end{array}$