In the Doppler effect, a redshift of spectral lines shows us the ...

[Chloeellawright]

In the Doppler effect, a redshift of spectral lines shows us the source is receding from us.
 
  Indicate whether the statement is true or false

Question 2

Suppose the entire solar nebula had cooled to a very low temperature before the solar wind cleared it away. Do you think Earth would be the same? Why or why not?
 
  What will be an ideal response?

[Danny Ewald]

Answer to Question 1

TRUE

Answer to Question 2

Ices would have condensed in the inner solar system, significantly increasing the size and mass (or possibly number) of terrestrial planets. Water and other hydrogen compounds would be much more abundant.

[Chloeellawright]

Great answer, keep it coming

[steff9894]

Thanks for the timely response, appreciate it