Author Question: From the fact that virtually every galaxy is moving away from us and more distant galaxies are ... (Read 60 times)

JMatthes · **on:** Jul 27, 2018

From the fact that virtually every galaxy is moving away from us and more distant galaxies are moving away from us at a faster rate than closer ones, we conclude that

A) the Milky Way Galaxy is expanding.
B) we are located at the center of the universe.
C) the farthest galaxies will eventually be moving faster than the speed of light.
D) the universe is expanding.
E) the universe is shrinking.

Question 2

Which of the following correctly compares the Sun's energy generation process to the energy generation process in human-built nuclear power plants?

A) The Sun generates energy by fusing small nuclei into larger ones, while our power plants generate energy by the fission (splitting) of large nuclei.
B) Both processes involve nuclear fusion, but the Sun fuses hydrogen while nuclear power plants fuse uranium.
C) The Sun generates energy through nuclear reactions while nuclear power plants generate energy through chemical reactions.
D) The Sun generates energy through fission while nuclear power plants generate energy through fusion.