Optical telescopes are usually used only at night, but radio telescopes can be used day or night. ...

Optical telescopes are usually used only at night, but radio telescopes can be used day or night.
 
  Indicate whether the statement is true or false

Question 2

Which of the following does NOT reveal information about conditions on the early Earth?
 
  A) the fossil record
  B) the sedimentary rocks found on the most ancient exposures in Greenland
  C) laboratory simulations of the primordial ocean and atmosphere
  D) advanced experiments on amino acids
  E) evidence gleaned from other planets in the early stages of their evolution

Question 3

As viewed from above Earth's North Pole, all of the planets orbit the Sun in the same (counterclockwise) direction.
 
  Indicate whether the statement is true or false