In the given food chain, if the amount of energy at fourth trophic level is \( 3 \mathrm{~kJ} \)...

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In the given food chain, if the amount of energy at fourth trophic level is \( 3 \mathrm{~kJ} \), what will be the energy available at the producer level?

Grass \( \rightarrow \) Grasshopper \( \rightarrow \) Frog \( \rightarrow \) Snake \( \rightarrow \) Hawk
a. \( 36 \mathrm{~kJ} \)
b. \( 30 \mathrm{~kJ} \)
c. \( 900 \mathrm{~kJ} \)
d. \( 3000 \mathrm{~kJ} \)
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