Which one of the following could not have significantly affected climatic variations, and advances and retreats of ice sheets, during the Pleistocene Epoch?
A)gradual movements of Earth's tectonic plates
B)episodic variations in the Sun's energy output
C)cyclic precession of Earth's orbit
D)periodic wobbling of Earth's rotational axis

Question

Quizplus · Accepted Answer

Gradual movements of Earth's tectonic plates occur over millions of years and are too slow to cause the relatively rapid climatic changes and ice sheet advances and retreats seen during the Pleistocene Epoch. The other factors listed are known to influence climate on shorter timescales relevant to the Pleistocene.

Which One of the Following Could Not Have Significantly Affected