Statement-1: Leaves and small insects float on the surface of water buoyed up by archimede's principle
Statement-2: They are not partially submerged. The object are kept afloat by surface tension.

Options

A. Statement-1, is true, Statement-2 is true, Statement-2 is correct explanation for statement-1
B. Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explantion for statement-1
C. statement-1 is true, statement-2 is false
D. statement-1 is false statement-2 is true

Answer

To analyze the statements provided in the question, we will break down each statement and evaluate its truthfulness and relationship.

### Step-by-Step Solution:

1. **Understanding Statement-1**:
- Statement-1 claims that leaves and small insects float on the surface of water buoyed up by Archimedes' principle.
- Archimedes' principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced by the object.
- However, leaves and small insects do not displace a significant amount of water because they are not fully submerged. Instead, they rest on the surface.

2. **Understanding Statement-2**:
- Statement-2 asserts that these objects are not partially submerged and that they are kept afloat by surface tension.
- Surface tension is a property of the liquid's surface that allows it to resist an external force, due to the cohesive nature of its molecules.
- In the case of small insects and leaves, surface tension indeed plays a crucial role in supporting their weight, preventing them from sinking.

3. **Evaluating the Truth of Each Statement**:
- **Statement-1**: This statement is **false** because while it mentions Archimedes' principle, it incorrectly implies that the principle is the reason for the floating of leaves and insects, which is not the case since they are not submerged.
- **Statement-2**: This statement is **true** as it accurately describes the phenomenon where surface tension supports the weight of small objects like leaves and insects.

4. **Conclusion**:
- Since Statement-1 is false and Statement-2 is true, we conclude that Statement-2 does not serve as a correct explanation for Statement-1.
- Therefore, the correct answer is that Statement-1 is false and Statement-2 is true.

### Final Answer:
- Statement-1 is false, and Statement-2 is true. Hence, the correct answer is option D.

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