Author Question: Which of the following has virtually no effect on the internal structure of a planet? A) its size ... (Read 45 times)

bcretired · **on:** Jul 27, 2018

Which of the following has virtually no effect on the internal structure of a planet?

A) its size B) its composition C) its magnetic field D) its mass

Question 2

By studying distant galaxies in the 1920s, Hubble made the following important discovery that led us to conclude that the universe is expanding.

A) All galaxies contain billions of stars, and all galaxies have spiral shapes.
B) All galaxies outside the Local Group are moving away from us, and the farther away they are, the faster they're going.
C) All galaxies were born at the same time, and all will die at the same time.
D) All galaxies outside the Local Group are orbiting the Local Group.
E) All galaxies outside the Local Group are moving away from us, and all are moving away at nearly the same speed.