A.I. Explanation:

First sentence: Why this is the first line? This paragraph is the first sentence because it introduces the main topic of gardening. It sets the stage for what to do before planting. It does not refer to any previous information, making it independent. It uses an introductory nature to explain the importance of choosing a good location for planting. Why other lines are not chosen? Paragraph 2 starts with "To get your garden off to a good start," which makes it dependent on prior context. Paragraph 3 begins with "After selecting the right spot," which also assumes prior knowledge. Paragraph 4 starts with "Finally," indicating it is not independent as it suggests a continuation of thought.

Concluding sentence: Why this is the last line? This paragraph is the last sentence because it wraps up the gardening process. It uses the word "Finally," which signals that this is the concluding step. It summarizes the final actions needed to keep the garden healthy.

Paragraph pairs:

• Pair 1 (Paragraph 1 → Paragraph 2): Paragraph 2 logically connects with Paragraph 1 because it follows the order of steps in gardening. The phrase "To get your garden off to a good start" shows that after choosing a location, the next step is to enrich the soil. This is a clear logical order.
• Pair 2 (Paragraph 2 → Paragraph 3): Paragraph 3 connects with Paragraph 2 because it continues the process of gardening. After enriching the soil, the next step is to plant the seedlings. This shows a logical order of actions.
• Pair 3 (Paragraph 3 → Paragraph 4): Paragraph 4 connects with Paragraph 3 because it describes what to do after planting. The word "Finally" shows that this is the last step in the gardening process. This indicates a logical order of tasks.