Lignite is

Options

A. gaseous fossil fuel
B. liquid fossil fuel
C. solid fossil fuel
D. inorganic mineral

Answer

**Step-by-Step Text Solution:**

1. **Definition of Lignite**: Lignite is commonly known as brown coal. It is a type of coal that is characterized by its soft texture and brown color.

2. **Physical Properties**: Lignite is soft and has a brownish hue. This differentiates it from other types of coal, which may be harder and darker.

3. **Combustibility**: Lignite is combustible, meaning it can catch fire and burn. This property makes it useful as a fuel source.

4. **Formation**: Lignite is formed from the compression of peat. Peat is an accumulation of decayed organic matter, and over time, with heat and pressure, it transforms into lignite.

5. **Geological Context**: Lignite is found in sedimentary rock formations. These formations provide the necessary conditions for the peat to compress and eventually turn into lignite.

6. **Classification**: Lignite is classified as a solid fossil fuel. Fossil fuels are natural substances formed from the remains of ancient organisms, and lignite is one of the earliest stages in the coal formation process.

**Final Summary**: Lignite, or brown coal, is a soft, brown, combustible solid fossil fuel formed from compressed peat found in sedimentary rocks.

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