X-rays travel at a greater speed than radio waves. Indicate ...

[pane00]

X-rays travel at a greater speed than radio waves.
 
  Indicate whether the statement is true or false

Question 2

Approximately, what basic composition are all stars born with?
 
  A) half hydrogen, half helium, no more than 2 percent heavier elements
  B) three-quarters hydrogen, one-quarter helium, no more than 2 percent heavier elements
  C) 90 percent hydrogen, 10 percent helium, no more than 1 percent heavier elements
  D) one-quarter hydrogen, three-quarters helium, no more than 2 percent heavier elements
  E) 98 percent hydrogen, 2 percent helium

[katkat_flores]

Answer to Question 1

FALSE

Answer to Question 2

B

[pane00]

Gracias!

[Liddy]

Excellent