Replacement of original hard parts of even the soft tissues of the organisms by minerals is known as

Options

A. Compression
B. Petrification
C. Moulds
D. Amber

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the process in which the original hard parts and soft tissues of organisms are replaced by minerals.

2. **Identifying Key Terms**: The key terms in the question are "replacement," "original hard parts," "soft tissues," and "minerals."

3. **Defining Fossils**: Fossils are the remains or traces of ancient organisms that have been preserved in the Earth's crust over time. They can include both hard parts (like bones and shells) and soft tissues.

4. **Explaining the Process**: The process of replacing organic material with minerals is known as mineralization. This is a specific type of fossilization where the organic components are replaced by inorganic minerals.

5. **Identifying the Correct Term**: Among the options provided (compression, petrification, molds, and embers), the term that specifically refers to the replacement of original hard parts and soft tissues by minerals is "petrification."

6. **Clarifying Other Options**:
- **Compression**: This process involves the preservation of plant remains where only the impression is left, not the actual material.
- **Molds**: This refers to the impression left by an organism that has decayed, leaving a mold without the original material.
- **Embers**: This is a type of fossil formed from plant resin, not related to the mineralization of tissues.

7. **Conclusion**: Therefore, the correct answer to the question is "petrification," which is the process of mineralization where organic tissues are replaced by minerals.

**Final Answer**: Petrification

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