If the evolution of life has been steadily moving forward, without encountering any setbacks or providing a special opportunity, it will be very difficult to divide the geological age. The geological age can be easily identified because of what geologists call "zoological performances" "", That is, the period when species suddenly appear or disappear, we can think of these events as the gate of time-at that moment, a period usually represents a climate, giving way to a new period, a new Climate. Only three factors of change are powerful enough to open the gate of time--continental drift, galaxy collisions, and climate change dynamics such as greenhouse gases. All of these factors operate differently, but they use the same approach to promote evolution-- ─ namely death and opportunity. From this, it can be inferred? ['Geologists know that the geological age has not encountered any setbacks.', 'Changes in climate do not necessarily lead to changes in species.', '"Animal succession" is the main basis for geological dating.', 'Only the continental drift can open the gate of time.']