Where is dark matter found in the periodic table?
A) within the noble gas elements
B) the transition metals
C) all radioactive elements
D) no where at all
Question 2
Evidence for dark matter is exhibited by the
A) relatively similar speeds at which all stars in a galaxy orbit the galactic nucleus.
B) speed at which galaxies orbit one another within clusters.
C) degree to which galaxy clusters exhibit gravitational lensing effects.
D) All of the above
