How do we expect that the first Earth-sized extrasolar planets ...

[lilldybug07]

How do we expect that the first Earth-sized extrasolar planets will be discovered (if they exist)?
 
  A) by the transit technique from an observatory in space
  B) with photographs from a new generation of large, ground-based observatories
  C) by NASA's Terrestrial Planet Finder mission
  D) by the Doppler technique

Question 2

Each day, there are ________ high tides on Earth.
 
  Fill in the blank(s) with correct word

[ong527]

Answer to Question 1

A

13.5 Mastering Astronomy Concept Quiz

Answer to Question 2

2

[lilldybug07]

TY

[ong527]

You're welcome