A white dwarf converts __________________ energy into _________________ energy.

A white dwarf converts __________________ energy into _________________ energy.
 
  a. nuclear, gravitational b. chemical, potential
  c. kinetic, potential d. gravitational, thermal

Question 2

When two galaxies collide, they pass through each other and their stars almost never collide.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 3

The triple-alpha process involves the fusion of
 
  a. three alpha particles. b. three neutral helium atoms.
  c. three alpha particles or three neutral helium atoms. d. None of the other choices are correct.

Question 4

If H equals 50 km/s/Mpc, then a galaxy with a radial velocity of 50,000 km/s will have a distance of about 1 Mpc.
 
  a. True
  b. False
  Indicate whether the statement is true or false