Pollutants can enter the environment naturally, such as form volcanic eruptions, or through human activities, such as burning coal and gasoline. 污染物能自然进入环境，像火山爆发那样的形式，或者透过人活动，例如燃烧煤和汽油。
A form was chosen to be a vehicle for the soul on earth, and the way was made for souls to enter earth and experience it as part of their cycle. 地球上的灵魂选择了一种作为载体的形式，为灵魂安排好了进入地球并在其中经历的方式，作为它们循环的一部分。
