Question

In the following food chain, plants provide 500 J of energy to rats. How much energy will be available to hawks from snakes?

Plants → Rats → Snakes → Hawks 

Answer 1

According to the given information, 500J of energy is available to the rats. Then, according to the 10% law, the amount of energy available to the snakes is 50J, and the amount of energy available to the hawks is 5J.