| 1. | Earth ' s atmosphere , hydrosphere , lithosphere , and forms of life are continually changing in response to changes in solar input , movements of earth ' s crust , other natural changes , and changes brought about by humans and other living organisms ( dynamic - earth principle )
地球的大气圈、水圈、岩石圈、及生物界一直持续在改变中，以回应太阳输入能量的变化、地壳的飘移、及其它各种自然环境的变化，以及因人类与各种生物引起的改变。 |
