Which of the following is a geologic factor that can play a role in a coming ice age

D. Uniformitarianism-A. Changes in the positions of the continents-A is probably the best answer but change in position isnt needed for continuation of the current cycle of glaciation and interglacials.Uniformitarianism is always a good principle to understand the past.It would tend to be of limited value in understanding why our climate moves into and out of periods of glaciation.A study of the variations in orbit and axis of rotation are more relevant.......