Question

Which of the following factors contribute to the periodic changes in Earth's temperature known as the Milankovitch cycles? SELECT THREE CORRECT ANSWERS

A. Earth's atmosphere has been enriched in oxygen by cyanobacteria
B. Earth's orbit alternates between a circular and an elliptical shape
C. Earth's shape is spherical
D. The concentration of carbon dioxide in Earth's atmosphere is decreasing
E. Earth wobbles slightly on its axis
F. Earth's axial tilt varies between 22 and 24 degrees

Answer 1

Answer:

(A)(D)(F)

Explanation:

A. Earth's atmosphere has been enriched in oxygen by cyanobacteria

D. The concentration of carbon dioxide in Earth's atmosphere is decreasing

F. Earth's axial tilt varies between 22 and 24 degrees

Answer 2

The correct answer is option (A.) Earth's atmosphere has been enriched in oxygen by cyanobacteria, (D. The concentration of carbon dioxide in Earth's atmosphere is decreasing, (F.) Earth's axial tilt varies between 22 and 24 degrees.

Explanation:

• Among all the options, the factors which contributes to the periodic changes in Earth's temperature known as the Milankovitch cycles are A, D and F.
• The Milankovitch cycles includes that:
• The shape of Earth's orbit is known as eccentricity.
• The angle Earth's axis is tilted with respect to Earth's orbital plane which is known as obliquity.
• The direction Earth's axis of rotation is pointed is referred as precession.