Which of the following types of material can condense into what we call ice at low temperatures?
A) hydrogen and helium B) hydrogen compounds
C) rock D) metal
Question 2
Two important properties of young neutron stars are
A) extremely rapid rotation and a weak magnetic field.
B) extremely slow rotation and a strong magnetic field.
C) extremely rapid rotation and a strong magnetic field.
D) no rotation and a weak magnetic field.
E) no rotation and no magnetic field.