Briefly describe the three most commonly used methods of indirect ...

[NguyenJ]

Briefly describe the three most commonly used methods of indirect planet detection.
 
  What will be an ideal response?

Question 2

Earth is the only planet in the solar system known to have plate tectonics.
 
  Indicate whether the statement is true or false

[patma1981]

Answer to Question 1

The Doppler technique measures the periodic change in velocity of a star due to the motion of a planet around it. The astrometric technique measures the periodic change in the position of a star on the sky as it responds to the motion of a planet around it. The transit technique measures the dip in star brightness as the planet moves in front of the stellar disk.

Answer to Question 2

TRUE

[NguyenJ]

Wow, this really help

[Laurenleakan]

Thanks for the timely response, appreciate it