Seventy five percent of Earth's surface is covered by ...

[cdr_15]

Seventy five percent of Earth's surface is covered by _______________.
 
  Fill in the blank(s) with correct word

Question 2

Cepheid variable stars are classified as either ____.
 
  a. Type A or Type B
  b. Type I or Type II
  c. Class A or Class B
  d. Class I or Class II
  e. Type C or Type R

[mohan]

Answer to Question 1

liquid water

Answer to Question 2

b

[cdr_15]

Great answer, keep it coming

[emsimon14]

Thanks for the timely response, appreciate it