Fossils act as evidence of organic evolution. Which one of these features does not justify feature of fossils ?

Options

A. They are remains of hard parts of life forms that existed in past
B. They are remains of decayed and decomposed body parts
C. Fossils present in lower strata of the earth are older than those present in the upper strata
D. Study of fossils of different sedimentary layers indicate the geological period in which they existed.

Answer

To solve the question regarding which feature does not justify the characteristics of fossils, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of Fossils**:
- Fossils are the preserved remains or traces of organisms from the past. They provide evidence of the history of life on Earth and support the theory of evolution.

2. **Analyze Each Statement**:
- We need to evaluate the four statements provided to determine which one is incorrect regarding fossils.

3. **Evaluate Statement 1**:
- "They are remains of hard parts of life forms that existed in the past."
- This statement is correct. Fossils typically consist of hard parts like bones and teeth.

4. **Evaluate Statement 2**:
- "They are the remains of decayed and decomposed body parts."
- This statement is incorrect. Fossils are not made from decayed or decomposed parts; they are preserved hard structures. Therefore, this statement does not justify the characteristics of fossils.

5. **Evaluate Statement 3**:
- "Fossils present in lower strata of earth are older than those present in the upper strata."
- This statement is correct. The geological principle of superposition states that lower layers are older than upper layers.

6. **Evaluate Statement 4**:
- "Study of fossils of different sedimentary layers indicate that geological period in which they existed."
- This statement is also correct. Fossils help scientists understand the geological time scale and the periods during which different organisms existed.

7. **Conclusion**:
- The only statement that does not justify the features of fossils is Statement 2: "They are the remains of decayed and decomposed body parts."

### Final Answer:
The feature that does not justify the characteristics of fossils is: **"They are the remains of decayed and decomposed body parts."**

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