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

Options

A. 400J
B. 50J
C. 5J
D. 0.5J

Explanation

To determine how much energy will be available to hawks from snakes in the given food chain, we can follow these steps:

### Step 1: Understand the Energy Transfer
In a food chain, energy is transferred from one trophic level to the next. According to the 10% law of energy transfer, only 10% of the energy from one level is passed on to the next level.

### Step 2: Calculate Energy Transferred from Plants to Rats
The plants provide 500 J of energy to the rats.

### Step 3: Calculate Energy Transferred from Rats to Snakes
Using the 10% law, we calculate how much energy the rats will pass on to the snakes:
- Energy transferred to snakes = 10% of energy from rats
- Energy transferred to snakes = 10% of 500 J = 50 J

### Step 4: Calculate Energy Transferred from Snakes to Hawks
Now, we need to find out how much energy will be transferred from snakes to hawks:
- Energy transferred to hawks = 10% of energy from snakes
- Energy transferred to hawks = 10% of 50 J = 5 J

### Conclusion
Therefore, the energy available to hawks from snakes is **5 J**.

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