Which three branches of science are most important in our study ...

[eruditmonkey@yahoo.com]

Which three branches of science are most important in our study of life in the universe?
 
  A) physics, mathematics, and astronomy
  B) astronomy, planetary science, and biology
  C) planetary science, biology, and mathematics
  D) biology, mathematics, and physics

Question 2

Humanity has been thinking about the possibility of extraterrestrial life
 
  A) since the first reports of unidentified flying objects in the 1940's
  B) since reports of canals on Mars were first made in the 1870's
  C) throughout human history since the time of the ancient Greeks

[zacnyjessica]

Answer to Question 1

B

Answer to Question 2

C

[eruditmonkey@yahoo.com]

Thank you!

[zacnyjessica]

Always glad to help...