Author Question: The elliptical shape of the Earth's orbit varies with time and takes about ____ to complete a cycle. ... (Read 213 times)

laurencescou · **on:** Jul 27, 2018

The elliptical shape of the Earth's orbit varies with time and takes about ____ to complete a cycle. This is a factor in the Milankovitch theory of ice ages.

a. 24 hours
b. one year
c. 26 years
d. 260 years
e. 100,000 years

Question 2

The inclination of the axis of the Earth varies from 22 to 24 degrees taking ____ to complete a cycle. This is a factor in the Milankovitch hypothesis of ice ages.

a. 24 hours
b. 1 year
c. 499 years
d. 41,000 years
e. Wrong The Earth's axis tilt is fixed at exactly 23.50 with no variation whatsoever.