Choose the right group from the following which has no fossil fuel :

Question

Accepted Answer

Option 1, which includes wind, tide, and sun, is the correct answer because none of these energy sources are fossil fuels. Fossil fuels are natural substances made from decomposed plants and animals that have been buried under layers of sediment and rock for millions of years. They include coal, petroleum, and natural gas. In contrast, wind, tide, and sun are renewable energy sources that do not rely on the decomposition of organic matter over geological time scales.

1. **Wind**: Wind energy is harnessed from the movement of air in the Earth's atmosphere. It is a clean and renewable source of energy that does not involve the burning of fossil fuels.

2. **Tide**: Tidal energy is generated from the gravitational pull of the moon and the sun on the Earth's oceans. It is a renewable energy source that does not produce emissions or rely on fossil fuels.

3. **Sun**: Solar energy is derived from the sun's radiation. It is a renewable and sustainable source of energy that does not involve the use of fossil fuels.

Now, let's examine why the other options are incorrect:

- **Option 2 (Wind, tide, and coal)**: This option is incorrect because coal is a fossil fuel. It is formed from the remains of ancient plants and is used as a major energy source worldwide. Unlike wind and tide, coal is not renewable and contributes to carbon emissions.

- **Option 3 (Petroleum, wood, and sun)**: This option is incorrect because petroleum is a fossil fuel. It is formed from the remains of ancient marine organisms and is a major source of energy. Wood, while not a fossil fuel, is a biomass energy source. The sun is renewable, but the presence of petroleum makes this group incorrect.

- **Option 4 (Wind, CNG, and sun)**: This option is incorrect because CNG (Compressed Natural Gas) is derived from natural gas, which is a fossil fuel. Although it burns cleaner than other fossil fuels, it is still not renewable. Wind and sun are renewable, but the inclusion of CNG makes this group incorrect.

In conclusion, Option 1 is the only group that consists entirely of renewable energy sources with no fossil fuels, making it the correct answer.