Author Question: If the Earth's period of rotation were halved, but the period of revolution about the Sun stayed the ... (Read 104 times)

sammy · **on:** Jul 27, 2018

If the Earth's period of rotation were halved, but the period of revolution about the Sun stayed the same,

a. the night would be twice as long.
b. the night would be half as long.
c. the year would be half as long.
d. the year would be half as long.
e. the length of the day would be unchanged.

Question 2

In the Milankovitch theory, the elliptical shape of the Earth's orbit, its axis tilt, and axis precession vary with time. These combined at times to create ____ on Earth.

a. day and night
b. seasonal temperature variations
c. daily temperature variations
d. ice ages
e. the constellations