If the tissue is fully burnt the remaining ash contain_____

Answer

To answer the question "If the tissue is fully burnt, the remaining ash contains _____", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Process of Burning**: When a tissue is fully burnt, it undergoes combustion. This process involves the breakdown of organic compounds present in the tissue, primarily made up of carbon, hydrogen, and oxygen.

2. **Formation of Ash**: During combustion, the organic components of the tissue are converted into gases (like CO2 and H2O) and are released into the atmosphere. What remains after the burning is the inorganic residue, commonly referred to as ash.

3. **Composition of Ash**: The ash left after burning tissue consists of inorganic elements. These elements are not part of the organic compounds that were present in the tissue.

4. **Examples of Inorganic Elements**: Some of the key inorganic elements that can be found in the ash include:
- **Phosphorus (P)**: An essential nutrient for plants and a component of DNA and RNA.
- **Magnesium (Mg)**: Important for photosynthesis and a central atom in chlorophyll.
- **Manganese (Mn)**: Plays a role in photosynthesis and is involved in the activation of several enzymes.

5. **Conclusion**: Therefore, the remaining ash after burning tissue contains inorganic elements such as phosphorus and magnesium, among others.

### Final Answer:
The remaining ash contains inorganic elements such as phosphorus and magnesium.

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