Complex sentence: This place can produce high quality Hadong green tea because it has many gravels, a good waterway, fertile land, a high mountain, deep valleys, many large and small rivers including Sumjin River, large difference temperature during harvestion time, and much fog.
Split into simpler sentences: This place can produce high quality Hadong green tea because it has many gravels. A good waterway, fertile land, a high mountain, deep valleys, many large and small rivers including Sumjin River, large difference temperature during harvestion time, and much fog.