Earth's precession A) means that Polaris is always the North ...

[JMatthes]

Earth's precession
 A) means that Polaris is always the North Star.
  B) is responsible for changes in Earth's eccentricity.
  C) can slowly change the climate difference between summer and winter in the Northern Hemisphere.
  D) has the same time period as changes in obliquity.
  E) all of the above

Question 2

The tilt of Earth's axis to the plane of its orbit around the Sun
 A) stays the same.
  B) varies about 2.5 degrees.
  C) is currently about 3 degrees.
  D) goes through one cycle of change about every 1.1 million years.
  E) has a major effect on Earth's eccentricity.

[bd5255]

Answer to Question 1

C

Answer to Question 2

B

[JMatthes]

Thanks for the timely response, appreciate it

[AngeliqueG]

Excellent