Explanation: In the context of Tamil Nadu Geography, the ability to describe the unique characteristics of different locations is crucial. Descriptive sentences are those that provide vivid and detailed information, often appealing to the senses, to paint a clear picture of a place or situation.
Let's analyze each option in detail:
- **Option A**: "Kodaikanal is different from Chennai." This statement is factual but lacks descriptive detail. It does not provide any sensory information or vivid imagery to differentiate the two locations. It merely states a fact without engaging the reader's senses or imagination.
- **Option B**: "Kodaikanal is 4,000 feet above mean sea level while Chennai is at the mean sea level." This option provides factual information about the elevation of both cities. While this information is useful, it does not engage the senses or provide a vivid description. It is more of a factual statement than a descriptive one.
- **Option C**: "Kodaikanal's population is 36,500 while Chennai's population is 4,680,000." This option focuses on the population sizes of the two cities. While this information is factual, it does not provide a descriptive or sensory comparison. It fails to evoke a vivid image or feeling about the two places.
- **Option D**: "The breeze from Kodaikanal Hills feels chilly while the Chennai sea breeze is dry." This option is the most descriptive because it appeals to the sense of touch by describing the chilliness of the breeze in Kodaikanal and the dryness of the sea breeze in Chennai. It effectively differentiates the two locations through a sensory experience, making the description vivid and engaging.
In summary, a descriptive sentence should provide vivid and detailed information, often appealing to the senses, to differentiate and highlight the unique characteristics of a place. Option D is the most descriptive because it uses sensory details to effectively differentiate Kodaikanal and Chennai, making it the correct answer.