Group 1 - The "White Dew" solar term marks the transition into autumn, indicating a cooling of temperatures across most regions of China [1] - The arrival of migratory birds signifies the seasonal changes, as they begin to fly south and prepare for winter by storing food [1] - Autumn crops such as corn, millet, and rice are reaching maturity and are ready for harvest during this period [3] Group 2 - The harvesting of "White Dew" tea begins, aligning with the seasonal changes and agricultural activities [3]