Answer the following questions given below on the basic of the given details:
Petrol, LPG, Wood, Paper, Sand, Water, Glass
Name two combustible substances.

Answer

To answer the question about identifying two combustible substances from the given list (Petrol, LPG, Wood, Paper, Sand, Water, Glass), we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Combustible Substances**:
- Combustible substances are materials that can easily catch fire and burn in the presence of oxygen.

2. **Analyze the Given List**:
- The substances provided are: Petrol, LPG, Wood, Paper, Sand, Water, and Glass.

3. **Identify Combustible Substances**:
- From the list:
- **Petrol**: Highly flammable liquid, easily catches fire.
- **LPG (Liquefied Petroleum Gas)**: A gas that is highly combustible.
- **Wood**: A natural material that burns easily.
- **Paper**: A thin material that ignites quickly.
- **Sand**: Non-combustible; does not burn.
- **Water**: Non-combustible; does not burn.
- **Glass**: Non-combustible; does not burn.

4. **Select Two Combustible Substances**:
- From the identified combustible substances, we can choose any two. For example:
- Petrol
- Wood

### Final Answer:
Two combustible substances from the list are **Petrol** and **Wood**.

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