The correct option is 2 only.
Explanation
The Humid Subtropical Climate (Köppen classification Cfa), also known as the Warm Temperate Eastern Margin climate, is characterized by hot, humid summers and mild winters. It is typically found on the eastern sides of continents between latitudes of 25° and 40°.
Statement-wise Analysis
- Statement 1 is Incorrect. The Humid Subtropical Climate lies on the eastern parts of continents in subtropical latitudes (e.g., southeastern USA, eastern China, southern Japan). The western parts of continents in these latitudes typically experience Mediterranean or Desert climates.
- Statement 2 is Correct. In this climate zone, air masses are generally unstable due to the influence of moist maritime tropical air flowing inland from the ocean. This instability, combined with frontal activity in winters, causes rainfall throughout the year. There is no distinct dry season.
- Statement 3 is Incorrect. This climate experiences wet summers due to convective rainfall and onshore winds, and generally wet winters due to temperate cyclones. The pattern of "dry summers and wet winters" is the specific characteristic of the Mediterranean Climate, not the Humid Subtropical Climate.
Key Takeaway: The Humid Subtropical Climate is located on the eastern margins of continents and features year-round precipitation, distinguishing it from the Mediterranean Climate (western margins) which has dry summers.