Radio telescopes are important in astronomy because a. they ...

[shofmannx20]

Radio telescopes are important in astronomy because
 
  a. they can detect cool hydrogen.
  b. they have high magnification.
  c. the can detect interstellar dust clouds.
  d. they are very inexpensive to build on tops of mountains.
  e. they don't need to be as large as optical telescopes to achieve the same resolving power.

Question 2

High mass stars evolve more slowly to the main sequence than lower mass stars.
 
  Indicate whether the statement is true or false

[tuate]

Answer to Question 1

A

Answer to Question 2

F

[shofmannx20]

Gracias!

[flexer1n1]

TYSM