A: In hydrosere , reed swamp stage is followed by floating plant stage .
R: Sedge meadow stage has amphibious herbaceous plants.

Options

A. If both Assertion &Reason are true and the reason is the corect explanation of the assertion , then mark (1)
B. If both Assertion & Reason are true but the reason, is not the correct explanation of the assertion , then mark (2)
C. If Assertion is true statement but Reason is false , them mark (3).
D. If both Asseration and Reason are false statements , then mark (4).

Answer

To solve the assertion-reason question, we need to analyze both the assertion (A) and the reason (R) provided.

**Step 1: Understand the Assertion (A)**
- The assertion states: "In hydrosere, reed swamp stage is followed by floating plant stage."
- In the context of ecological succession in a hydrosere (a type of ecological succession that occurs in aquatic environments), the stages typically progress from phytoplankton to rooted submerged plants, then to floating plants, followed by reed swamps, and eventually to sedge meadows and woodlands.
- Therefore, the assertion is **incorrect** because the reed swamp stage comes **after** the floating plant stage, not before it.

**Step 2: Understand the Reason (R)**
- The reason states: "Sedge meadow stage has amphibious herbaceous plants."
- Sedge meadows are indeed characterized by the presence of amphibious plants, which are plants that can grow both in water and on land. These plants are adapted to wet conditions and can thrive in both submerged and aerial environments.
- Therefore, the reason is **correct**.

**Step 3: Determine the Relationship Between A and R**
- Since the assertion is incorrect and the reason is correct, we need to evaluate the relationship between them.
- The reason does not provide a correct explanation for the assertion because the assertion itself is false.

**Final Conclusion:**
- The correct answer is that the assertion is false, the reason is true, and the reason is not a correct explanation for the assertion.