What causes the radio pulses of a pulsar? A) The star ...

[PhilipSeeMore]

What causes the radio pulses of a pulsar?
 
  A) The star vibrates.
  B) As the star spins, beams of radio radiation sweep through space. If one of the beams crosses Earth, we observe a pulse.
  C) The star undergoes periodic explosions of nuclear fusion that generate radio emission.
  D) The star's orbiting companion periodically eclipses the radio waves emitted by the main pulsar.
  E) A black hole near the star absorbs energy and re-emits it as radio waves.

Question 2

In the inner solar system, the largest surface features are found on the largest planets.
 
  Indicate whether the statement is true or false

[yifu223]

Answer to Question 1

B

Answer to Question 2

FALSE