Which of the following is a renewable source of energy?

Options

A. Coal
B. Petroleum
C. Tide
D. Uranium

Explanation

To determine which of the following options is a renewable source of energy, we can follow these steps:

### Step 1: Understand Renewable vs Non-Renewable Energy Sources
- Renewable energy sources are those that can be replenished naturally in a short period of time. They include resources like solar, wind, hydro, and tidal energy.
- Non-renewable energy sources, on the other hand, are those that do not replenish quickly and can be depleted. These include fossil fuels like coal and petroleum, as well as nuclear energy sources like uranium.

### Step 2: Analyze the Options
- **Option A: Coal** - This is a fossil fuel and is considered a non-renewable energy source because it takes millions of years to form.
- **Option B: Petroleum** - Similar to coal, petroleum is also a fossil fuel and non-renewable.
- **Option C: Tide** - Tidal energy is generated from the movement of ocean tides, which is a natural process that occurs regularly and can be harnessed for energy.
- **Option D: Uranium** - This is a non-renewable resource used in nuclear energy production.

### Step 3: Identify the Renewable Source
- Among the options, tidal energy (Option C) is the only source that is renewable. It is generated from the natural rise and fall of ocean tides, which can be harnessed repeatedly without depleting the resource.

### Conclusion
- Therefore, the answer to the question "Which of the following is a renewable source of energy?" is **C: Tide**.

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