What is the major natural cause of changes in global climate?
A) volcanoes
B) variations in the Earth's orbit
C) variations in the strength of the sun's energy
D) glacial ice melt

Question

Quizplus · Accepted Answer

Variations in the Earth's orbit, also known as Milankovitch cycles, have been identified as the major natural cause of changes in global climate. These cycles involve changes in the eccentricity, axial tilt, and precession of the Earth's orbit, which can affect the distribution and intensity of solar radiation reaching the Earth's surface. Other factors such as volcanic activity and glacial ice melt can also contribute to climate change, but their effects are considered secondary to Milankovitch cycles. The strength of the sun's energy can also influence climate, but its impact is relatively minor compared to orbital variations.

What Is the Major Natural Cause of Changes in Global