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) cyclic precession of Earth's orbit
C) episodic variations in the Sun's energy output
D) periodic wobbling of Earth's rotational axis

Question

Quizplus · Accepted Answer

Gradual movements of Earth's tectonic plates would not have significantly affected climatic variations and the advances and retreats of ice sheets during the relatively short geological timeframe of the Pleistocene Epoch. Tectonic movements occur over millions of years, whereas the Pleistocene Epoch, spanning from about 2.6 million years ago to 11,700 years ago, experienced climate changes primarily due to factors like Earth's orbital cycles (Milankovitch cycles), including precession and axial tilt, and possibly variations in solar output.

Which One of the Following Could Not Have Significantly Affected